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An Evaluation Of Superresolution Methods For Tactical Radio Direction Finding
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Book Synopsis An Evaluation of Superresolution Methods for Tactical Radio Direction Finding by :
Download or read book An Evaluation of Superresolution Methods for Tactical Radio Direction Finding written by and published by . This book was released on 1991 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report evaluates superresolution direction finding methods for land tactical narrowband very high frequency/ultrahigh frequency purposes. The DF methods are described and evaluated in depth using a common theoretical framework beginning with classical methods and ending with modern day eigenanalysis based methods. Based on this analysis, superresolution methods can be described in terms of a five step procedure where each step has a unique purpose the estimation process. Different methods vary according to the operations performed at each step. This is useful in analyzing and comparing the theoretical performance of various DF methods under the same conditions. The results from simulations are also included to support the theoretical evaluations.
Book Synopsis Radio Direction Finding and Superresolution by : P. J. D. Gething
Download or read book Radio Direction Finding and Superresolution written by P. J. D. Gething and published by IET. This book was released on 1991 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enlarged and revised second edition. 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.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Application of Superresolution Techniques in Radio Direction Finding by : S. Sharma
Download or read book The Application of Superresolution Techniques in Radio Direction Finding written by S. Sharma and published by . This book was released on 1993 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of Conventional Tactical Radio Direction Finding Systems by : William Read
Download or read book Review of Conventional Tactical Radio Direction Finding Systems written by William Read and published by . This book was released on 1989 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP. written by and published by . This book was released on 1992 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radio Direction Finding by : P. J. D. Gething
Download or read book Radio Direction Finding written by P. J. D. Gething and published by Institution of Electrical Engineers. This book was released on 1978 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 287) by :
Download or read book Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 287) written by and published by . This book was released on 1993 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Small-aperture Radio Direction-finding by : Herndon H. Jenkins
Download or read book Small-aperture Radio Direction-finding written by Herndon H. Jenkins and published by Artech House Radar Library (Ha. This book was released on 1991 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Operating principles - Performance difinition - Direction-finding error sources - System level descriptions - Representative operational small-aperture - Passive geolocation - Subsystem considerations - Calibration and test of direction-finding systems.
Book Synopsis A Statistical Method for Radio Direction Finder (D/F) Evaluation by : Holly Claire Fryer
Download or read book A Statistical Method for Radio Direction Finder (D/F) Evaluation written by Holly Claire Fryer and published by . This book was released on 1945 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1993 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Book Synopsis The Development and Evaluation of a Panoramic Radio Direction Finding Receiver by : Edward Eugene Kellum
Download or read book The Development and Evaluation of a Panoramic Radio Direction Finding Receiver written by Edward Eugene Kellum and published by . This book was released on 1959 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of the Watson-Watt And Butler Matrix Approaches For Direction Finding by : William J. Read
Download or read book An Evaluation of the Watson-Watt And Butler Matrix Approaches For Direction Finding written by William J. Read and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an evaluation of the Watson-Watt and Butler matrix approaches for tactical wideband radio direction finding applications. The evaluation was carried out using theoretical derivations & computer simulations, focussing on the effects of various error mechanisms including internal noise, terrestrial & isotropic noise, co-channel interference, and multipath. The theoretical evaluations consider both four- and eight-element circular antenna arrays. A maximum likelihood (ML) approach was also derived and evaluated for comparative purposes to determine the accuracy trade-off between using an N-channel approach versus the three- channel Watson-Watt approach and the two-channel Butler matrix approach.
Book Synopsis Government reports annual index by :
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1846 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of the Watson-Watt and Butler Matrix Approaches for Direction Finding by :
Download or read book An Evaluation of the Watson-Watt and Butler Matrix Approaches for Direction Finding written by and published by . This book was released on 1999 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an evaluation of the Watson-Watt and Butler matrix approaches for tactical wideband radio direction finding applications. The evaluation was carried out using theoretical derivations & computer simulations, focussing on the effects of various error mechanisms including internal noise, terrestrial & isotropic noise, co-channel interference, and multipath. The theoretical evaluations consider both four- and eight-element circular antenna arrays. A maximum likelihood (ML) approach was also derived and evaluated for comparative purposes to determine the accuracy trade-off between using an N-channel approach versus the three- channel Watson-Watt approach and the two-channel Butler matrix approach.
Book Synopsis Evaluation of Model X-DBH Radio Direction Finder by : John J. Conlon
Download or read book Evaluation of Model X-DBH Radio Direction Finder written by John J. Conlon and published by . This book was released on 1948 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Evaluation of a Radio Direction Finding System Utilizing Complementary Sequence Phase Coding of Incident Signals by : David Louis Prisaznick
Download or read book Technical Evaluation of a Radio Direction Finding System Utilizing Complementary Sequence Phase Coding of Incident Signals written by David Louis Prisaznick and published by . This book was released on 1973 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new radio direction finding system has been proposed which offers advantages over current systems in the areas of bearing accuracy and simplicity of antenna design requirements. The system phase codes the outputs of a linear array of omnidirectional antennas, and then combines these time-separated signals so that the sequences produced uniquely determine the signal arrival angle. A correlation process using matched filters is performed on the resulting sequences in order to determine the corresponding arrival angle. Resolution of the inherent ambiguities of the system, due to elevation angle and adjacent quadrant azimuth components is demonstrated using a two-array technique. A computer simulation of the phase coding/decoding process, using an idealized signal model is used to evaluate the performance of the system for various input noise conditions, array lengths, and input signal parameters. (Author).
