By Topic

Communications, Radar and Signal Processing, IEE Proceedings F

Issue 4 • Date July 1987

Filter Results

Displaying Results 1 - 16 of 16
  • Operating principles and recent developments in analogue and digital signal processing hardware

    Publication Year: 1987, Page(s):305 - 334
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (4920 KB)

    The paper covers the salient features, comparisons and potential of recent developments in analogue signal processing hardware: surface-acoustic-wave (SAW) devices, charge-transfer devices (CTD), and also switched-capacitor filter networks. After describing the operating principles of these devices, their potential for several important signal processing roles is reviewed. Applications are treated... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Approach to study of PRF sensitivity in airborne pulse-Doppler radar

    Publication Year: 1987, Page(s):335 - 340
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (666 KB)

    An approach to the selection of an optimum pulse repetition frequency (PRF) in an airborne pulse-Doppler radar is discussed. A radar simulation program is employed, and this is described in outline. A specific example is presented. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Suboptimal frequency-domain adaptive antenna processing algorithm for broadband environments

    Publication Year: 1987, Page(s):341 - 351
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (866 KB)

    The paper develops an adaptive antenna algorithm that is highly suboptimal and suitable for use in broadband environments. The algorithm is of the LMS beamforming type and is a variation on a frequency-domain adaptive beamformer. Processing is assumed to take place in frequency bands not exceeding one octave. In this band the complex weight vectors Wk are made a simple analytic function of FFT cel... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robust 8000 bit/s sub-band speech coder

    Publication Year: 1987, Page(s):352 - 366
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2031 KB)

    A speech coding technique has been developed to provide a method of digitising speech at bit rates in the region of 8000 bit/s which is insensitive to the effects of acoustic background noise and bit errors on the digital link. The main aim of the work has been to develop a coding scheme which provides speech quality and robustness against noise and errors that is similar to a 16 000 bit/s CVSD co... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • High-survivability network architecture for military communications

    Publication Year: 1987, Page(s):367 - 372
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (710 KB)

    The concept of `quasirandom¿¿ connectivity is put forward, and it is shown that, for an equal total number of nodes and links, this can dramatically reduce the risk of a network being split into several large fragments. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Split-syndrome burst error correcting codes for one-dimensional channels

    Publication Year: 1987, Page(s):373 - 376
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (537 KB)

    An extension to a recently discovered class of burst error correcting codes is described. The differences from the previous codes are detailed, together with enhancements to the decoding algorithm. It is shown that the minimum distance of this class of codes is four, and an example of decoding one of the extended codes is given. The simple nature of the decoder allows these codes to be considered ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Synchronisation of line-coded digital PPM in repeatered transmission systems

    Publication Year: 1987, Page(s):377 - 382
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (745 KB)

    Line coding is shown to provide an effective means of controlling modulation jitter associated with digital pulse-position modulation (PPM), enabling simple phase-locked-loop (PLL) timing extraction circuits to be employed. The combination of a specific 9B2-32 code and a suitably designed third-order PLL with a maximally flat response is proposed and studied for the purpose of obtaining at depende... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Channel estimation for land mobile radio systems

    Publication Year: 1987, Page(s):383 - 393
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1375 KB)

    The paper describes a number of novel and promising techniques for use in the estimation of a flat fading channel with a rapid fading rate, such as occurs in many land mobile radio systems. The algorithms of the various techniques are first presented, followed by the results of a series of computer simulation tests, carried out on these algorithms when operating with an idealised model of the chan... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robust generalised crosscorrelator filters used in time delay estimation

    Publication Year: 1987, Page(s):394 - 400
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (640 KB)

    Robust Eckart and Wiener filters used in time delay estimation have been considered previously. In the present paper results are extended and generalised to include two Hassab-Boucher filters, employed in the generalised crosscorrelator. These filters optimise two different criteria. Explicit solutions are derived for the ¿-contaminated model and the p-point ¿-contaminated model for the input si... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Image data compression using 2-D lattice modelling method

    Publication Year: 1987, Page(s):401 - 404
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (401 KB)

    An approach to image data compression using the 2-D lattice modelling method is presented. In addition to the 2-D lattice predictor, this realisation includes uniform quantisation and entropy coding of the prediction errors of the predictor. Results show that coded pictures with an signal/noise ratio of 30.5 dB can be obtained at an information rate of 0.8 bit/pixel. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Error performance of multi-h partial-response phase codes

    Publication Year: 1987, Page(s):405 - 415
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1008 KB)

    Multi-h partial-response (MHPR) schemes show good error probability performance. The paper takes a closer look at this modulation scheme in the light of Euclidean distances using rectangular and raised-cosine signalling pulses. The binary and quaternary modulation levels are used for the signalling pulses considered. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Coherent detection of binary multi-h CPM

    Publication Year: 1987, Page(s):416 - 426
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (972 KB)

    In the paper receiver structures which minimise the bit error probability for coherent detection of multi-h binary continuous phase modulation (CPM) signals for arbitrary number of observation intervals are examined by means of the traditional union bound at high SNR and by using the concept of the average matched filter (AMF) at low SNR. Multi-h schemes are found by upper-bound minimisation as a ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hardware-based fourier transforms: algorithms and architectures

    Publication Year: 1987, Page(s):427 - 428
    IEEE is not the copyright holder of this material | PDF file iconPDF (191 KB)
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Correspondence: New class of sequence sets with good auto- and crosscorrelation functions

    Publication Year: 1987, Page(s):428 - 429
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (213 KB)

    A way of constructing sets of sequences claimed to have good auto- and crosscorrelation functions has recently been described. It is shown that in fact the crosscorrelation functions can be very poor. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reply: New class of sequence sets with good auto- and crosscorrelation functions

    Publication Year: 1987
    IEEE is not the copyright holder of this material | PDF file iconPDF (101 KB)
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Successful radar conference in China

    Publication Year: 1987, Page(s):430 - 431
    IEEE is not the copyright holder of this material | PDF file iconPDF (354 KB)
    Freely Available from IEEE

Aims & Scope

The latest version of this title is Radar, Sonar & Navigation, IET.

Full Aims & Scope