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Aerospace and Electronic Systems, IEEE Transactions on

Issue 1 • Date Jan. 1967

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Displaying Results 1 - 25 of 27
  • [Front cover]

    Publication Year: 1967 , Page(s): c1
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    Freely Available from IEEE
  • IEEE Aerospace and Electronic Systems Group

    Publication Year: 1967 , Page(s): nil1
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    Freely Available from IEEE
  • [Breaker page]

    Publication Year: 1967 , Page(s): nil1
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    Freely Available from IEEE
  • From the Editors

    Publication Year: 1967 , Page(s): 1
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  • Proposal Perfidy, A Poverty Syndrome (Ethics as a Prerequisite to Proposal Success)

    Publication Year: 1967 , Page(s): 2 - 4
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1256 KB)  

    There is a direct correlation between proposal success and proposal ethics, a fact which is independent of the proposal scope or the type of customer. To be successful, a proposal must result in a profit when measured within the total environment of present and future sales. A misleading or unethical proposal has little chance of leading to an immediate contract, is most likely to incur cost penal... View full abstract»

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  • Detection Probabilities for Log-Normally Distributed Signals

    Publication Year: 1967 , Page(s): 5 - 13
    Cited by:  Papers (22)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1927 KB)  

    The amplitude and power of a large family of radio signals are observed to have log-normal probability density functions. Among these are signals propagated through random inhomogeneous media, a notable example being low frequency atmospheric radio noise. Of greater importance are certain radar targets that have been observed to have essentially log-normal density functions. Both ships and space v... View full abstract»

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  • Designing Pseudorandom Coded Ranging Systems

    Publication Year: 1967 , Page(s): 14 - 27
    Cited by:  Papers (6)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2454 KB)  

    This paper develops a set of mathematical tools for system design or analysis of a type of pseudorandom coded ranging system used in several space programs. Certain probabilities of failure of the system to perform the ranging function and the times required for the system to perform prescribed ranging functions are defined and related to system parameters. A set of sample calculations is presente... View full abstract»

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  • Comments on the communication and data problems associated with a Mars trip during a conjunction phase

    Publication Year: 1967 , Page(s): 28 - 43
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3417 KB)  

    The analysis and comments presented in this paper are meant to establish the general communication parameters associated with Martian flyby probes and with lander and manned vehicles. Fundamental data transfer problems are reviewed to define comparisons and trends of tradeoffs for future studies. Selected focal points are based upon the long propagation path length, with inherent time delays, and ... View full abstract»

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  • Cancellation of Unwanted Spectral Components in an FM Multivibrator System

    Publication Year: 1967 , Page(s): 44 - 50
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1620 KB)  

    The performance of FM multivibrator systems for high quality communications applications is limited by the presence of unwanted spectral components. A theory is presented for an improved system in which unwanted spectral components are cancelled, achieved by generating a cancelling component in a square-law device. The cancelling component tracks the unwanted component in both frequency and amplit... View full abstract»

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  • Execute Command in Space Communications

    Publication Year: 1967 , Page(s): 51 - 56
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1312 KB)  

    Two types of feedback systems for a command channel are described. a) Complex Feedback¿where, for each command, an identification is relayed back over the feedback channel. b) Decision Feedback¿where the feedback channel is used only to state whether the satellite recognized the transmission as a command word. For a), the decision as to whether a command was properly received at the satellite is... View full abstract»

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  • Demonstration of a Quantile System for Compression of Data from Deep Space Probes

    Publication Year: 1967 , Page(s): 57 - 65
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3039 KB)  

    This paper describes the theory and design of an advanced engineering prototype of a quantile system of data compression for space telemetry. The basic idea is to transmit a few quantiles (or percentage points, as they are sometimes called) of a histogram of experimental values formed aboard a spacecraft. Only these quantiles are transmitted to Earth, and yet a large part of the information that w... View full abstract»

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  • The Biasing Effect of Random Bit Errors on Binary Telemetry Data

    Publication Year: 1967 , Page(s): 66 - 70
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1227 KB)  

    Random bit errors that occur in PCM data during the various phases of the telemetry-data-processing system will not only add a component of mean square error to the experimental data but will also bias it. This paper derives a formula for the bias and describes some of the characteristics of the bias. View full abstract»

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  • Experiments in Adaptive Estimation of Unknown Binary Waveforms

    Publication Year: 1967 , Page(s): 71 - 82
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3283 KB)  

    A special-purpose adaptive machine is described which carries out estimation in real time of an unknown binary waveform which is perturbed with additive Gaussian noise. Unknown waveforms of over 103 samples in duration can be recovered. The unknown waveforms are of unknown epoch and can reappear at either random or periodic time intervals. The observed signal is received at moderate or low signal-... View full abstract»

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  • A Microwave Feedback Radiometer

    Publication Year: 1967 , Page(s): 83 - 90
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2422 KB)  

    Two versions of a microwave feedback radiometer have been built and tested. One used an electromechanical feedback system; the other, an all-electronic system. The response of the servo loops proved to be fast enough and linear enough for almost any radiometer application. The rms noise fluctuation was the same as that of a Dicke radiometer. Stability was excellent even under adverse environmental... View full abstract»

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  • Phase Compensation for Widely-Spaced Antenna Systems Employing Coherent Signal Combinations

    Publication Year: 1967 , Page(s): 91 - 98
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2019 KB)  

    This paper describes a technique for providing phase compensation to signals received at widely-spaced antennas and processed at a central location. Self-compensation is provided for pathlength variations in reference-signal distribution systems. The technique may be adapted to include the measurement and compensation of signal-channel phase variations. Practical systems which require this type of... View full abstract»

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  • Command and Control of Deep Submergence Vehicles

    Publication Year: 1967 , Page(s): 99 - 106
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3106 KB)  

    The wide variety of applications for deep submergence vehicles gives rise to a complex set of command and control requirements. An over-view of the command control requirements is presented by setting forth a catalog of the deep submergence vehicle family in terms of type and mission. The vehicle types are categorized by a set of eight descriptors, manned/unmanned, free/tethered, suspended/bottome... View full abstract»

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  • Flexible Solar Cell Arrays for Increased Space Power

    Publication Year: 1967 , Page(s): 107 - 115
    Cited by:  Papers (2)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3770 KB)  

    The importance of solar cells for space power supplies continues with increased emphasis. The need for advances in the design of solar cell arrays becomes more pressing as the requirement for increased power levels is apparent. This paper discusses a flexible solar cell concept, includes a brief history of the development, describes a conceptual design for a 20-kW array, giving weight breakdown, a... View full abstract»

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  • Automatic Controller for a Sweeping Microwave Receiver

    Publication Year: 1967 , Page(s): 116 - 122
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1748 KB)  

    The Automatic System Controller (ASC) is a very simple automatic data processing system designed to provide unattended operation of the R-31 receiver, a sweeping microwave receiver. With the receiver set to operate in the scanning mode, its video output is processed by the ASC, which recognizes by thresholding the presence of a signal in the receiver pass band. When the threshold is exceeded, a re... View full abstract»

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  • Effects of CW Interference on Narrow-Band Second-Order Phase-Lock Loops

    Publication Year: 1967 , Page(s): 123 - 135
    Cited by:  Papers (12)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2228 KB)  

    This paper describes an experimental study of the effect of continuous wave (CW) interference and white noise on a second-order phase-lock loop. The reciprocal of the loop mean-square phase error is used as an index of performance, and the effect of interference levels that do not cause cycle skipping or loss of lock is described in terms of this index. Loop thresholds are determined by measuremen... View full abstract»

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  • A Remrark on Polonnikov's Approach to Generalized Bode Diagrams

    Publication Year: 1967 , Page(s): 136 - 138
    Request Permissions | Click to expandAbstract | PDF file iconPDF (392 KB)  

    First Page of the Article
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  • Optimum Burst Waveforms for Detection of Targets in Uniform Range-Extended Clutter

    Publication Year: 1967 , Page(s): 138 - 141
    Cited by:  Papers (7)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (614 KB)  

    First Page of the Article
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  • Comparison of Combined Barker Codes for Coded Radar Use

    Publication Year: 1967 , Page(s): 141 - 143
    Cited by:  Papers (10)  |  Patents (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (459 KB)  

    The autocorrelation functions ¿I(¿) and ¿II(¿) of Codes I and II are shown in Figs. 1 and 2, respectively. Several interesting points are noted from a comparison of these figures. View full abstract»

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  • Outputs of a Moving Window Cross Correlator When the Input is a Phase-Reversed Code

    Publication Year: 1967 , Page(s): 143 - 144
    Cited by:  Patents (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (264 KB)  

    Figure 1 shows the cross correlation ¿pp(¿) of the plus code in the moving window with a plus code followed by a plus code. Figure 2 shows the cross correlation ¿pn(¿) of the code in the window with a plus code followed by a minus code.4 The displacement variable ¿ is quantized into bit lengths. The point ¿ = 0 is where the pluss code in the Window completely overlaps the first plus code, an... View full abstract»

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  • On the Angular Resolution of Multiple Targets

    Publication Year: 1967 , Page(s): 145 - 148
    Cited by:  Papers (6)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (451 KB)  

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  • Simulation of Radar Range and of Doppler Effect by Means of a Stationary Target

    Publication Year: 1967 , Page(s): 148 - 149
    Request Permissions | Click to expandAbstract | PDF file iconPDF (377 KB)  

    The subject of this correspondence is relevant to a type of passive electronic countermeasure known under the code name of "confusion chaff." It consists of metal strips or wires dispensed in a proper place in space so as to produce radar echoes similar to those of real targets of interest to the defense. We wish to concentrate here on the phase where medium in which chaff is deposited is dense, a... View full abstract»

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Aims & Scope

IEEE Transactions on Aerospace and Electronic Systems focuses on the organization, design, development, integration, and operation of complex systems for space, air, ocean, or ground environment.  These systems include, but are not limited to, navigation, avionics, spacecraft, aerospace power, radar, sonar, telemetry, defense, transportation, automated testing, and command and control. 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Lance Kaplan
Army Research Laboratory