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.

Download or read book Radio Direction Finding and Superresolution written by P. J. D. Gething and published by Institution of Engineering & Technology. This book was released on 1991 with total page 390 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.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

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 Radio Direction Finding written by United States. Department of the Army and published by . This book was released on 1977 with total page 224 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:

Download or read book Methods for Direction Finding of Direct Sequence Spread Spectrum Signals written by Magnus Finne and published by DIANE Publishing. This book was released on 1996 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of spread-spectrum signals has increased dramatically in military radio communications. This report locates methods for direction-finding direct-sequence spread-spectrum (DS/SS) signals; digital methods are of special interest. A literature survey was conducted to see if there are any known methods. Investigated if a DS/SS detection method using a square-law detector can be extended to direction-finding. By use of computer simulations, show the performance of the methods found. Benefits and problems are also discussed.

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:

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 Transmitter Hunting written by Joseph D. Moell and published by McGraw Hill Professional. This book was released on 1987-06-22 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains all the information needed to set up and perform radio direction finding on HF and VHF bands.

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.

Download or read book Radio Direction Finding written by David William Watson and published by . This book was released on 1971 with total page 232 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)

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:

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.

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.