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IEEE Transactions on Aerospace and Electronic Systems

Issue 1 • Date Jan. 1970

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  • Table of contents

    Publication Year: 1970, Page(s): c1
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  • IEEE Aerospace and Electronic Systems Group

    Publication Year: 1970, Page(s): c2
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  • From the Editors

    Publication Year: 1970, Page(s): 1
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  • Dr. Meint Harms and Hyperbolic Navigation a Vignette of Radio Navigation History

    Publication Year: 1970, Page(s):2 - 9
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2760 KB)

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  • A Statistical Evaluation of Aircraft Collision-Hazard Warning System Techniques in the Terminal Area

    Publication Year: 1970, Page(s):10 - 21
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3113 KB)

    The rapidly increasing density of air traffic has created a demand for instrumentation to reduce the possibility of air catastrophes due to collision. The incidence of reported near-collisions is now estimated to be over 2000 per year in the United States, and represents a serious threat to the future growth of air travel. Since mid-1967, research has been conducted by NASA and the Research Triang... View full abstract»

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  • Rendezvous Navigation and Guidance Using a Hand-Held Self-Powered Digital Computer

    Publication Year: 1970, Page(s):22 - 28
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    This paper describes a simplified solution of the space rendezvous problem based on optical sightings taken with a hand-held sextant entered into and processed by a small digital computer. Compared to the manual method described in [1], this approach greatly reduces the astronaut's work load. Also, the computer can provide a more accurate solution, can present more flight plan options (allowing mo... View full abstract»

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  • Modular Computer Research

    Publication Year: 1970, Page(s):29 - 36
    Cited by:  Papers (2)
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    This paper discusses one area of research being carried out at the NASA/Electronics Research Center in strapdown guidance technology. In particular, the task of determining the characteristics of the onboard computer is examined. Strapdown calculations impose unique constraints on the computational requirements of the flight computer. In addition, this computer should be suitable for prolonged unm... View full abstract»

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  • On Sonar Signal Analysis

    Publication Year: 1970, Page(s):37 - 50
    Cited by:  Papers (32)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2461 KB)

    Systems which utilize acoustic energy to explore an undersea environment are called sonars. This introductory and tutorial paper presents a discussion of active sonar signal analysis concentrating upon sinusoidal, linear FM, and pseudorandom echolocation pulses. Many previously published results concerning sonar signals and their haracteristics are integrated, collected, and presented in a unified... View full abstract»

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  • A Generalized Clutter Computation Procedure for Airborne Pulse Doppler Radars

    Publication Year: 1970, Page(s):51 - 61
    Cited by:  Papers (4)
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    A general procedure for analyzing ground clutter effects in airborne pulse Doppler radars is described. The quantity computed is the expected clutter power at the output of any specified range gate/ Doppler filter processing cell. The procedure has been computerized and is quite general with respect to antenna gain pattern, clutter cross section variation, PRF, pulse and range gate shapes, and the... View full abstract»

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  • High-Resolution, Radar Coherent Linear FM Microwave Source

    Publication Year: 1970, Page(s):62 - 72
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3964 KB)

    The microwave CLFM study was directed to generating 14 ¿s S-band pulses of 1000 MHz bandwidth and an rms phase error of a few degrees. Over 972 MHz bandwidth, the sampled phase error relative to the reference was 7 degrees rms and 17 degrees peak, with a maximum Fourier component of 4 degrees. The FM pulse train is generated by a gated BWO driven by a stable linearizing waveform. Phase coherency ... View full abstract»

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  • A Matched-Filter Pulse-Compression System Using a Nonlinear FM Waveform

    Publication Year: 1970, Page(s):73 - 78
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2206 KB)

    The realization of a rectangular pulse-compression waveform having low time sidelobes and zero mismatch loss due to spectral weighting is discussed. The theoretical aspects of the design of such a waveform are presented with particular reference to frequency modulated, rectangular pulses. The design and performance of a matched-filter pulse-compression system having essentially zero mismatch loss ... View full abstract»

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  • Analysis of a Signal Processor for an Antenna Array

    Publication Year: 1970, Page(s):79 - 87
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2016 KB)

    A signal processor that provides ratio-squared predetection combining, has been investigated for application in an adaptive antenna array. The analysis and experimental data presented here pertain to the signal processing gain when the antenna array is illuminated by a coherent signal source and a partially coherent noise source. For a noise source which is coherent, the processing gain depends on... View full abstract»

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  • On Some Damped Oscillatory Integrands

    Publication Year: 1970, Page(s):88 - 90
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    Two five-parameter singular improper integrals arising in cross-correlation problems are evaluated, and corresponding nonelementary Laplace inversion formulas are derived. View full abstract»

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  • Impulse Response Determination by Cross Correlation

    Publication Year: 1970, Page(s):91 - 97
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2002 KB)

    This paper describes the design of a digital cross correlator and its application in determining the impulse response in linear systems. The output of the cross correlator, which correlates the input and the output of a linear system excited by noise, is the same as the response of the linear system to a pulse which is identical to the noise autocorrelation. The impulse response error is defined a... View full abstract»

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  • Effect of Random Synchronization Errors in PN and PSK Systems

    Publication Year: 1970, Page(s):98 - 100
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (658 KB)

    The effect of a constant synchronization error on PN systems has been studied by Gill [1]. His results are generalized here for random synchronization errors, and extended to PSK systems using decision directed channel measurements [2]. In both cases, it is shown that the effect of random synchronization errors is to reduce the effective input signal power and to introduce an additional self-noise... View full abstract»

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  • AE's Dilemma

    Publication Year: 1970, Page(s): 101
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  • Comments on "Atomic Power-Who Looks after Public Safety?"

    Publication Year: 1970, Page(s): 102
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  • IEEE G-AES-AN Invitation

    Publication Year: 1970, Page(s):103 - 104
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  • IEEE Aerospace and Electronic Systems Group

    Publication Year: 1970, Page(s): 104-a
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  • Institutional listings

    Publication Year: 1970, Page(s): 104b
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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