Includes the top 50 most frequently accessed documents for this publication according to the usage statistics for the month of

  • A review of automatic gain control theory

    Publication Year: 1981, Page(s):579 - 590
    Cited by:  Papers (17)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1163 KB)

    The paper presents the general theory of automatic gain control (a.g.c). It includes discussions on loop gain, regulation and the relation between loop parameters and output level stability. An equivalent circuit is derived which is used in the study of dynamic behaviour. The work is extended to cover sampled data a.g.c. systems and design guidelines are derived for a variety of situations. View full abstract»

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  • Coherent and non-coherent demodulation of envelope-modulated radio signals. With particular reference to the enhanced-carrier system

    Publication Year: 1963, Page(s):65 - 71
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (765 KB)

    The ordinary ¿linear detector¿ and the coherent demodulator are briefly discussed as the two extreme cases of demodulators for envelopemodulated signals, since in the former the rectifier (or modulator) is switched by the complete input signal, while in the latter a pure local reference tone is used. The synchrodyne and enhanced-carrier systems are regarded as intermediate cases in which the swi... View full abstract»

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  • The Vivaldi aerial

    Publication Year: 1981
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (224 KB)

    An aerial having a gain of about 10 dBI with associated sidelobe level of ¿ 20 dB over an instantaneous frequency bandwidth extending from 2 GHz to 40 GHz has been devised at the Philips Research Laboratories, Redhill. View full abstract»

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  • The transfer function synthesis of LC ladder networks

    Publication Year: 1977, Page(s):274 - 276
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (283 KB)

    The recurrent-continuant procedure as previously described1 conforms to a transfer function polynomial that leads to an LCR ladder structure. In this contribution a modification to the procedure is proposed that extends its application to the realization of pure LC structures and thence, by the use of simple frequency transformation, to the realization of pure RC structures, as well. In the propos... View full abstract»

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  • The performance of a magnetic loop transmitter-receiver system submerged in the sea

    Publication Year: 1972, Page(s):457 - 462
    Cited by:  Papers (13)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (823 KB)

    The theoretical predictions for an electromagnetic wave in both free-space and an infinite conducting medium are considered and an experimental technique is described which was used to measure the variation of signal strength with distance for a magnetic-loop transmitter-receiver system submerged in sea-water, at a mid-water depth (100 m) where boundary effects could be ignored safely. Underwater ... View full abstract»

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  • The processing of synthetic aperture radar signals

    Publication Year: 1983, Page(s):107 - 114
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (981 KB)

    The basis for processing synthetic aperture radar signals is derived and the limitations imposed by unwanted platform motion discussed. The hardware realization of both unfocused and focused SAR processing is briefly described in terms of a block diagram and of the required complex multiplication time and storage capacity. Some additional processes are also briefly outlined. It is not possible to ... View full abstract»

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  • Dielectric loaded waveguides-a review of theoretical solutions. Part 2: Propagation through dielectric loaded waveguides

    Publication Year: 1965, Page(s):195 - 205
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (844 KB)

    The paper presents an analytical survey of the propagation characteristics of microwaves through (i) dielectric loaded waveguides, such as parallel plane, rectangular, circularly cylindrical and coaxial guides filled inhomogeneously with one or two dielectrics; (ii) imperfect waveguides filled with imperfect dielectrics. The problem of the existence of backward waves in a circular cylindrical wave... View full abstract»

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  • Electromagnetic theory of the leaky coaxial cable

    Publication Year: 1975, Page(s):233 - 240
    Cited by:  Papers (15)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (807 KB)

    The transfer of electromagnetic fields through a grid made of conducting strips similar to the braid of a coaxial cable is expressed by means of a transfer surface impedance relating the tangential electric field to the discontinuity of the tangential magnetic field. This impedance is calculated as a function of the grid parameters. It is then used to establish the electromagnetic theory of a brai... View full abstract»

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  • Studies of the Adcock direction finder in terms of phase-mode excitations around circular arrays

    Publication Year: 1983, Page(s):33 - 38
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1131 KB)

    A new analysis of the Adcock direction finder is presented in terms of phase-mode excitations associated with circular arrays. This leads to a convenient form of processing for such a d.f. system based upon a circular array/Butler matrix configuration which employs a direct phase-measuring detector for bearing measurements. The principal sources of error limiting the physical spacing of elements w... View full abstract»

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  • Design for a multi-input binary adder

    Publication Year: 1970, Page(s):77 - 80
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (403 KB)

    The need often arises in digital systems for a fast multi-input adder capable of adding together n distinct serial binary numbers. The normal design method is to employ a parallel-series configuration of 2-input synchronous adders. It is shown how the overall speed of a multi-input adder may be enhanced using a 3-input adder stage. A circuit is described using cascaded 2- and 3-input synchronous a... View full abstract»

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  • Use of the transmission-line modelling (t.l.m.) method to solve non-linear lumped networks

    Publication Year: 1980, Page(s):59 - 70
    Cited by:  Papers (45)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1299 KB)

    The transmission-line modelling (t.l.m.) method presents a new approach to the solution of lumped networks by providing discrete models for components. Errors become due to the modelling process only and not due to the approximate solution of an approximate calculus model. The correspondence between stub models and existing implicit methods is shown and the concept of numerical parasitic component... View full abstract»

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  • Phased array radar systems

    Publication Year: 1964, Page(s):331 - 339
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (2489 KB)

    Phased array systems provide a number of features which make them particularly suitable for long range, high target density, radar applications such as satellite tracking and space surveillance. These include long-range detection capability, high transmitted power, inertialess electronic beam steering, multiple receiving-beam capability, high reliability and extreme flexibility. Basic principles o... View full abstract»

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  • Non-linear resistors

    Publication Year: 1973, Page(s):609 - 612
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (526 KB)

    Non-linear resistors have been known since the early 19th century but have been of commercial significance only over the last 50 years. Today over 700 million pieces are manufactured annually. This paper outlines the three major types commonly found in the electronics industry, namely, negative and positive temperature coefficient thermistors, and voltage-dependent resistors. The electrical proper... View full abstract»

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  • Experimental analysis of v.h.f. antennas for helicopter homing systems using scalemodel techniques

    Publication Year: 1979, Page(s):197 - 203
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (932 KB)

    The use of scale modelling for assessment of helicopter homing systems is described, including appropriate measurement techniques for different frequency bands. The interaction of the antennas with the metal fuselage is of primary importance, and this is illustrated in three different homing applications. View full abstract»

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  • Synchronization and slip performance in a digital network

    Publication Year: 1984, Page(s):87 - 96
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1475 KB)

    The timing of signals and processes within integrated digital networks requires careful control in order to minimize signal degradation through the occurrence of slip. The paper discusses the slip mechanism and the alternative methods of its minimization, i.e. the use of high accuracy clocks working in a plesiochronous mode or the phase locking of nodal clocks to a reference clock. The progress of... View full abstract»

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  • A survey of planar integrated mm-wave components

    Publication Year: 1982, Page(s):46 - 50
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1151 KB)

    Different approaches for the integration of mm-wave components have been presented recently, suggesting image line or shielded microstrip line for example. A very promising attempt employs quasi-planar structures, like fin-line, and related line configurations for this purpose. The paper gives a survey of various components being developed in the frequency range from 18 to 170 GHz using this appro... View full abstract»

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  • Radio frequency characteristics of carbon fibre composite materials

    Publication Year: 1981, Page(s):505 - 513
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1028 KB)

    A comprehensive investigation of the r.f. properties of a range of samples of carbon fibre composite materials has been made. These samples were chosen as being representative of those which have been used or are likely to be used in aircraft construction. This paper is in two parts, first the investigations made to determine the electrical resistance characteristics of small samples of CFC materi... View full abstract»

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  • The expanding role of semiconductor devices in telecommunications

    Publication Year: 1973, Page(s):82 - 90
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (2158 KB)

    The junction transistor made its first impact on telecommunications in transmission systems, then entirely analogue, effectively by replacing thermionic valves. later developments of that transistor have made possible systems enabling over 10 000 telephone channels to be carried on one 9.5 mm diameter coaxial tube. submarine cable systems have also benefited from the development of highly reliable... View full abstract»

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  • The development of speech encipherment

    Publication Year: 1980, Page(s):147 - 155
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1217 KB)

    This paper surveys some past and present principles of speech coding. The advent of digital logic systems and integrated circuit components is seen as a major turning point in the implementation of effective coding principles that could not previously be used satisfactorily. Various coding methods are discussed, covering frequency domain, time domain and analogue and digital output systems. The pr... View full abstract»

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  • On the use of delays for wide-band superdirective beam forming in endfire and broadside arrays

    Publication Year: 1975, Page(s):451 - 461
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1390 KB)

    In algebra, the values of a polynomial over a wide span of time can be inferred from its value and that of its derivatives, measured over a very short span of time. Somewhat analogously, closely-spaced measurements, defining the fine structure of the phase and amplitude distribution over a narrow antenna aperture, can provide the information conventionally obtained from a similar number of element... View full abstract»

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  • Theoretical and experimental methods for evaluating discontinuities in microstrip

    Publication Year: 1978, Page(s):73 - 84
    Cited by:  Papers (9)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1243 KB)

    Microwave circuits generally include a number of junctions and discontinuities at the interconnection of the various circuit limits and the resulting parasitic reactances can have a major effect on the circuit operation. The designer of waveguide and coaxial circuits has had available, for many years, a wealth of information on the parasitic reactances associated with the circuit elements and disc... View full abstract»

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  • Engineering approach to the design of tapered dielectric-rod and horn antennas

    Publication Year: 1972, Page(s):251 - 259
    Cited by:  Papers (13)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1203 KB)

    The taper profile of optimized dielectric-rod and horn antennas is synthesized as a series of non-interacting planar radiating apertures. The method is semi-empirical, straightforward to apply, enables the dielectric-rod antenna to be satisfactorily optimized and provides a means of evaluating and optimizing a dielectric-horn antenna with variable wall thickness. The optimum profiles are taken as ... View full abstract»

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  • Three-resonant-mode adjustment of the waveguide circulator

    Publication Year: 1972, Page(s):213 - 216
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (435 KB)

    In its matched condition the scattering matrix eigenvalues of the three-port circulator lie equally spaced on a unit circle. As the frequency is varied these eigenvalues rotate in the complex plane at different speeds and the phase relation between them no longer corresponds to an ideal circulator. This is primarily due to the fact that the reference eigenvalue is normally associated with a nonres... View full abstract»

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  • Series-parallel generation of m-sequences

    Publication Year: 1975, Page(s):171 - 176
    Cited by:  Papers (26)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (705 KB)

    An equivalence class of machines is identified which generate maximal length sequences as a non-overlapping series of k-bit words. This is achieved at the expense of a k-fold increase in combinational logic but with no increase in the number of storage elements required. View full abstract»

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  • The recurrent-continuant method of transfer function synthesis

    Publication Year: 1969, Page(s):73 - 81
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1018 KB)

    It is shown that the ratio of input voltage to output voltage for any passive ladder type low-pass filter network is always a polynomial in the complex frequency s. This polynomial can always be written by inspection as a single determinant in the form of a recurrent. The recurrent determinant is then converted by elementary manipulation into an alternate form known as a continuant. The transfer f... View full abstract»

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  • Some cellular logic arrays for non-restoring binary division

    Publication Year: 1970, Page(s):345 - 348
    Cited by:  Papers (13)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (454 KB)

    An array containing controlled adder-subtractor cells is described. An alternative array is presented which uses 2's complement arithmetic to perform subtractions. The operating speeds of the arrays are considered in connection with the logical design of the cells. An application of cellular arrays in generating the Napierian logarithm of a binary number is outlined. View full abstract»

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  • F.M. deviation measurements

    Publication Year: 1968, Page(s):281 - 293
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1260 KB)

    The technique used for a frequency modulation measurement depends upon various factors such as the value of modulation index and frequency deviation. Even with the same set of variables more than one method of measurement may be available and the choice of method is decided as much by its ease of application as by its inherent accuracy.Some of the more commonly used methods of frequency modulation... View full abstract»

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  • Helix antenna for spacecraft

    Publication Year: 1969, Page(s):237 - 240
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (915 KB)

    This paper describes the development and performance of a light-weight, high-gain, high-efficiency, rigid helix antenna and discusses a light-weight deployable helix antenna. The weight of the rigid helix was 016 kg (0.35 lb) and had a measured gain of 16.5 dB at 2.3 GHz. The estimated weight of the deployable helix is 0.06 kg (0.13 lb). Such antenna elements can be used for phased arrays for spac... View full abstract»

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  • Study of the Q-factor of a surface-wave resonator

    Publication Year: 1968, Page(s):111 - 131
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (3162 KB)

    By applying field theory and transmission line theory, the Q-factor of a surface-wave resonator is derived. A new technique for determining the Q-factor is developed. Attenuation constants of Sommerfeld and Goubau surface-wave lines of different diameters are determined from a large number of measurements of Q-factor as a function of length of the resonator. The effect of tilt and rotation of one ... View full abstract»

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  • Electromechanical switching devices: reliability, life and the relevance of circuit design

    Publication Year: 1966
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1453 KB)

    Electromechanical switching devices are grouped broadly into two classes: those which can be used to choose a specific set of contacts from a considerable number of selections, e.g. rotary switches, and those which when operated or released will establish or break the same set of contacts, e.g. relays. Both groups of devices are discussed in considerable detail from the point of view of reliabilit... View full abstract»

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  • Theory of reflections in a tapered waveguide

    Publication Year: 1966, Page(s):245 - 254
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1041 KB)

    The tapered waveguide is regarded as a two-mode system, the modes being the forward and reverse waves. A reflection parameter can be defined, relating the amplitude of the reverse wave generated at a point in the taper to the amplitude of the forward wave at that point. The reflection parameter can be regarded as a coupling parameter between the two modes, and coupled-mode theory can be used to ob... View full abstract»

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  • A comparison of five methods of low-pass passive filter design

    Publication Year: 1964, Page(s):167 - 180
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (986 KB)

    The phase and magnitude characteristics of five network functions, all three-pole approximations to an ideal low-pass filter characteristic, are compared. The functions considered are the Butterworth, Chebyshev, Papoulis Class L, `maximally flat delay¿ and `in-line pole¿; all of these can be realized with a simple passive circuit. The equations for the pole locations are quoted. Plots of the pol... View full abstract»

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  • Propagation of sound in shallow water

    Publication Year: 1963, Page(s):329 - 337
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (885 KB)

    The way the medium controls sound reception in shallow water is discussed generally, and illustrated by some North Sea experiments with explosion sources. The ray and mode theories are introduced, and it is shown where it is convenient to change from one to the other. Transmission loss is the most important parameter, and is least around 200 c/s. Time dispersion is mainly due to the dispersion in ... View full abstract»

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  • An engineering approach to the design of transistor feedback amplifiers

    Publication Year: 1963, Page(s):127 - 144
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1889 KB)

    A technique is developed for the design of transistor feedback amplifiers, based on the use of impedance mismatches between stages. Expressions are derived for the transmittance of the four basic building blocks¿the series and shunt single stage feedback amplifiers and the current and voltage feedback pairs¿and methods of interconnection which achieve the mismatch are considered. The expressions... View full abstract»

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  • A broadband balanced idler circuit for parametric amplifiers

    Publication Year: 1964, Page(s):331 - 335
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (504 KB)

    The bandwidth of the idler circuit of a parametric amplifier is discussed, and reductions in bandwidth associated with stray reactances of the diode encapsulation and filter networks required to complete the idler circuit are described. A balanced idler circuit using two diodes is shown to approach the theoretically maximum idler bandwidth. A 3000 Mc/s amplifier is described having a 10% bandwidth... View full abstract»

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  • Two four-quadrant electronic multipliers

    Publication Year: 1963
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1048 KB)

    Two instruments, which provide analogue multiplication in all four quadrants, are described. The principle used in the first multiplier is that of varying the saturation point of a ferro-magnetic circuit in proportion to one of the inputs, so as to control the mark/space ratio of a chopper, which then modulates the other input. The second multiplier uses the principle of modulating the phase of on... View full abstract»

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  • Methods of distinguishing sea targets from clutter on a civil marine radar

    Publication Year: 1964, Page(s):261 - 273
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (2613 KB)

    Mathematical expressions for the signal received from isolated targets and clutter are analysed to show how the signal/clutter ratio is influenced by the parameters of the radar set. Graphs of signal amplitudes are then used to indicate the characteristics of the signals which can be exploited to improve the observed signal/clutter ratio. The limitations introduced by the display and the technique... View full abstract»

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  • Progress in electromechanical filters

    Publication Year: 1965, Page(s):173 - 182
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (3379 KB)

    The development of techniques for manufacturing electromechanical filters is discussed and the change from single rods with turnedin necks to built-up construction described. Single-sideband filters and miniature types are then described and methods of eliminating spurious modes are shown. View full abstract»

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  • Effects of nuclear explosions on the ionosphere

    Publication Year: 1965, Page(s):89 - 97
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1061 KB)

    The ionization produced in the lower ionosphere by x-rays, ß-particles from neutron decay and ß and ¿-radiation from fission debris from a nuclear burst is examined. The effects of this increased ionization on the propagation of radio frequency signals in the various bands is considered. View full abstract»

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  • Z-transforms and their applications in control engineering

    Publication Year: 1965, Page(s):53 - 67
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1235 KB)

    The paper describes the z-transform theory and its application. The background theory is built up in four stages from the continuous convolution integral, through the real-time impulse theory, to the z-transform. It is stressed that, unlike the Laplace transform, the z-transform is only an approximation. Engineering units are used throughout and emphasis is given to the correct representation of t... View full abstract»

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  • Acoustic amplification in semiconductors

    Publication Year: 1966, Page(s):145 - 155
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1800 KB)

    If the application of semiconductors is to be extended to microwave frequencies, the limitations due to electrode capacitance and transit time must be overcome. To a certain extent this can be done by reducing junction size and using majority carriers where possible. However a muchmore sophisticated way of overcoming these difficulties is to try to realize in semiconductors the type of continuous ... View full abstract»

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  • A simplified theory of the three-port junction ferrite circulator

    Publication Year: 1967, Page(s):283 - 288
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (518 KB)

    A simplified theory of the three-port junction circulator is given. This theory is applicable to all three-port junctions which rely on the splitting of a pair of degenerate modes and gives the two circulation conditions of the three-port junction circulator in terms of the elements of the equivalent shunt resonator. This is done by first developing the degenerate normal-mode description of the re... View full abstract»

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  • Characteristics of varactor diodes at low temperatures

    Publication Year: 1967
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (876 KB)

    An experimental investigation of varactor diode junction properties at low temperatures has been performed. Both elemental and compound type diodes have been examined, including two silicon varactors produced by different doping techniques and a diffused mesa-type gallium arsenide varactor. The diode spreading resistance is calculated from Q-factor measurements with an appropriate correction appli... View full abstract»

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  • The Maxson multi-beam antenna: theory and design for non-interacting beams

    Publication Year: 1969, Page(s):117 - 129
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1692 KB)

    A multi-beam antenna known as the Maxson antenna is described. It consists of a linear array of elements fed in a serial fashion by a matrix of waveguide directional couplers. The antenna designed produced two 1° beams and operated over a 10% bandwidth at C-band. The feeder coupling matrix was designed to produce no interaction between beams. Limits on orthogonal and non-orthogonal beam-shapes an... View full abstract»

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  • Noise susceptibility of integrated circuits in digital systems

    Publication Year: 1968, Page(s):291 - 298
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (930 KB)

    The particular effects of noise upon logic gate and flip-flop circuits and the resultant general effects upon digital systems are considered. Common sources of noise are outlined andtheir significance in integrated circuit systems is considered. Such sources include crosstalk, reflections, common-earth impedance coupling and supply line noise. Present methods of assessment and specification of d.c... View full abstract»

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  • The Ariel III satellite project

    Publication Year: 1968, Page(s):17 - 32
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1614 KB)

    Ariel III carries equipment from five scientific groups in the U.K. to measure ionospheric and high atmosphere properties. The project management structure is described. The spacecraft configuration evolved from two fundamental requirements¿spin stabilization and power supply by solar cells. The evolution of the structure and sub-systems, together with the operation of various mechanisms, is outl... View full abstract»

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  • Transistor abnormalities as revealed by current-voltage characteristics

    Publication Year: 1969, Page(s):251 - 268
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (2335 KB)

    The examination of a suspect transistor to determine its mode of degradation or failure always includes, at an early stage, checks on its junction and transistor characteristics, usually with the aid of a visual display on a curve tracer. This paper discusses the diagnostic significance of some of the abnormalities which may be observed on such displays. View full abstract»

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  • Monte-carlo simulation of an active sonar

    Publication Year: 1970, Page(s):265 - 271
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (819 KB)

    This paper describes the analysis of a non-linear sonar processing system by simple Monte-Carlo methods. The target detection capability with isotropic background noise and spatially coherent reverberation is found with attention being paid to the effects of frequency filters in the input channels from the transducers. The resolution and detection of multiple and diffuse targets is assessed under ... View full abstract»

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  • Radar polarization comparisons in sea-clutter suppression by decorrelation and constant false alarm rate receivers

    Publication Year: 1969, Page(s):187 - 197
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1931 KB)

    An X-band radar with back-to-back horizontally and vertically polarized antennas of equal gain and beamwidths was built. The antennas were enclosed in a symmetrical aerodynamic radome permitting speeds of rotation from 20 rev/min to 600 rev/min. The radar power was switched every half revolution from one antenna to the other, so that a sea-clutter picture presented on the top 180° of the p.p.i. d... View full abstract»

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  • The visualization of ultrasound in solids

    Publication Year: 1970, Page(s):316 - 320
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1084 KB)

    In order to improve ultrasonic testing methods, a highly sensitive Schlieren apparatus has been built to visualize the propagation of ultrasound in solids. The design of the apparatus is described and some of the initial results are shown. View full abstract»

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Aims & Scope

Published from 1963 to February 1964 by the British Institution of Radio Engineers and from March 1964 to 1984 by the the Institution of Electronic and Radio Engineers, The Radio and Electronic Engineer published papers describing original research and development in all branches of electronic engineering, as well as critical and interpretive surveys. Short contributions dealing with device technology, circuit techniques and experimental methods were also included.

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