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by P.J.D. Gething

Author: P.J.D. Gething
Subcategory: Engineering
Language: English
Publisher: The Institution of Engineering and Technology; 2 edition (June 30, 1991)
Pages: 386 pages
Category: Engineering and Transport
Rating: 4.3
Other formats: lrf doc txt mobi

Dr Radio Direction Finding and Superresolution Electromagnetics and Radar Series (Выпуск 33) IEE electromagnetic waves series.

Radio Direction Finding and Superresolution Electromagnetics and Radar Series (Выпуск 33) IEE electromagnetic waves series (Выпуск 33), ISSN 0263-5860 Institution of Electrical Engineers: IEE electromagnetic waves series (Том 33). Автор.

The text is illustrated with computer plots of model wavefields and contains important results on the loci of constant phase and amplitude, and on the statistical properties of bearing-error distributions for specified models. The Institution of Engineering and Technology ww. heiet. org 0 86341 238 6 978-086341-238-7.

Gething, Radio Direction Finding and Superresolution, ser. Electromagnetics and Radar. The MUSIC algorithm is one of the more important high resolution approaches for direction finding and spectral estimation that have been developed in recent years. P. Peregrinus Lt. 1991. Performance analysis of the SuperCART antenna array. infinite data or SNR) the MUSIC algorithm has been shown to yield efficient unbiased estimates. However the performance of the algorithm for the non-asymptotic situation of high noise and limited data has not been fully addressed.

Radio Direction Finding and Superresolution. Medians of observed ground backscatter agree fairly well with predictions. Ill-Posed Problems of Digital Processing of Information and Signals. Positioning of Ionospheric Irregularities and the Earth’s Surface Roughness Using an Over-the-Horizon HF Radar. Ionospheric Models, OTH RADAR, Skywave Transmission.

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Between a first undergraduate course in electromagnetism (EM) and the advanced graduate course lies a middle . Скачать (pdf, . 2 Mb) Читать.

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Bibliographic Details. Title: Radio Direction Finding and Superresolution. AbeBooks offers millions of new, used, rare and out-of-print books, as well as cheap textbooks from thousands of booksellers around the world.

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Find all the books, read about the author, and more. Are you an author? Learn about Author Central. J. D. Gething (Author). Despite this it has received very little attention in publications outside scientific journals except for simplistic texts aimed at the hobbyist.

This is an enlarged and revised second edition of a book first published in 1978 and reprinted twice since then. The new edition includes updates to all the original chapters, plus two new chapters on developments in superresolution techniques and their application to direction-finding arrays.

Modern direction finders, capable of measuring elevation angles as well as azimuth angles on the components of multi-ray wavefields, have become powerful tools for research in ionospheric physics and HF radio propagation. The complexity of the problem of resolving closely-spaced rays requires the combined use of wide aperture antenna arrays, multichannel receiving systems and sophisticated digital processing techniques.

Published research papers over the last 12 years provide a rich source of information on the development of superresolution algorithms for use in radar, sonar, geophysics and spectral analysis, as well as radio direction finding. Dr Gething reviews the important methods and results, showing how some of the new techniques are related to the wavefront analysis methods described in the first edition. The text is illustrated with computer plots of model wavefields and contain important results on the loci of constant phase and amplitude, and on the statistical properties of bearing-error distributions for specified models. The collection and interpretation of ionospheric data for the purpose of mode identification, and the statistical theory of DF plotting algorithms, are also discussed.

Wavefront analysis and superresolution may be regarded as extensions to classical array theory. The basic principles are widely applicable and should therefore be of interest to research workers in radar, sonar, radioastronomy and adaptive array theory, as well as HF radio direction finding.