An Investigation Of A Digital Bearing Computer For A Small Aperature Radio Direction Finding System
Download An Investigation Of A Digital Bearing Computer For A Small Aperature Radio Direction Finding System full books in PDF, epub, and Kindle. Read online free An Investigation Of A Digital Bearing Computer For A Small Aperature Radio Direction Finding System ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author | : Hubert Lee Grush |
Publisher | : |
Total Pages | : 220 |
Release | : 1965 |
Genre | : Electronic digital computers |
ISBN | : |
Download An Investigation of a Digital Bearing Computer for a Small Aperture Radio Direction Finding System Book in PDF, Epub and Kindle
Author | : Hubert L. Grush |
Publisher | : |
Total Pages | : 119 |
Release | : 1965 |
Genre | : |
ISBN | : |
Download An Investigation of a Digital Bearing Computer for a Small Aperature Radio Direction Finding System Book in PDF, Epub and Kindle
A small aperture radio direction finding system such as a Watson-Watt system is subject to large bearing errors because of the wave interference effect of two waves. By contrast, a large aperture system such as a Wullenweber system exhibits smaller errors under corresponding conditions. This work attempts to develop a practicable means of obtaining accurate bearing information using a small aperture system in the presence of strong wave interference. The technique used is the time averaging of instantaneous bearings. Thus, bearing information may be obtained with a small aperture system by using information available over an extended period of time. The computation of the bearing may be carried out on-line by a small general purpose digital computer. One of the unique features of the digital bearing computer developed here is its capability to adapt to changing input signal conditions. The adaptive capability makes it possible to optimize the averaging process. The process allows estimates of the indicated bearings of both the primary and the interfering waves and their relative strengths to be made. A mathematical model for the relative phase between the two waves is evolved which is not unlike that of the real phase function. The model yields a regular progression of phase plus a random perturbing component. The only restriction placed upon the phase function is that its probability density function be essentially uniform. (Author).
Author | : |
Publisher | : |
Total Pages | : 836 |
Release | : 1994 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, Epub and Kindle
Author | : Herndon H. Jenkins |
Publisher | : Artech House Radar Library (Ha |
Total Pages | : 264 |
Release | : 1991 |
Genre | : Technology & Engineering |
ISBN | : |
Download Small-aperture Radio Direction-finding Book in PDF, Epub and Kindle
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.
Author | : |
Publisher | : |
Total Pages | : 384 |
Release | : 1966 |
Genre | : Science |
ISBN | : |
Download U.S. Government Research & Development Reports Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 488 |
Release | : 1962 |
Genre | : Computers |
ISBN | : |
Download Computers and Data Processing Systems Book in PDF, Epub and Kindle
Author | : Michael Dennis Cousins |
Publisher | : |
Total Pages | : 212 |
Release | : 1972 |
Genre | : Radio meteorology |
ISBN | : |
Download Direction Finding on Whistlers and Related VLF Signals Book in PDF, Epub and Kindle
The direction of arrival of whistlers and related VLF signals has been measured by a new technique. This technique consists of applying an already existing theory (the 'four-parameter method') to data collected by a novel measurement procedure. Measurements of signals induced in orthogonal loop antennas and a vertical monopole located at a single site provide the necessary data. The four-parameter theory relates the loop and vertical voltages, taking into account both amplitudes and phases so that polarization error may be eliminated. The technique can be shown equal or superior in accuracy to any other VLF direction-finding scheme in current use, such as the standard crossed-loops-and-goniometer technique. (Author).
Author | : |
Publisher | : |
Total Pages | : 84 |
Release | : 1958 |
Genre | : Science |
ISBN | : |
Download U.S. Government Research Reports Book in PDF, Epub and Kindle
Author | : P. J. D. Gething |
Publisher | : IET |
Total Pages | : 392 |
Release | : 1991 |
Genre | : Science |
ISBN | : 9780863412387 |
Download Radio Direction Finding and Superresolution Book in PDF, Epub and Kindle
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.
Author | : |
Publisher | : |
Total Pages | : |
Release | : 1965-12 |
Genre | : Technology |
ISBN | : |
Download U.S. Government Research & Development Reports Book in PDF, Epub and Kindle