Download Electronic Warfare Target Location Methods, Second Edition by Richard Poisel PDF

By Richard Poisel

Describing the mathematical improvement underlying present and classical equipment of geolocating digital platforms which are emitting, this newly revised and tremendously elevated variation of a vintage Artech residence booklet deals sensible suggestions in digital war aim position. the second one variation incorporates a wealth of extra fabric together with new chapters on time hold up estimation, course discovering strategies, and the track set of rules. This sensible source provide you with serious layout info on geolocation algorithms, and establishes the basics of present algorithms as a release element for additional set of rules improvement. You achieve an in-depth figuring out of key goal position tools that you should successfully practice on your paintings within the box. you find triangulation algorithms that supply a hugely effective solution to geolocate goals whilst the genuine property at the sensor platforms is enough to help an antenna array. The booklet additionally offers quadratic geolocation options that may be carried out with super modest antennas often a unmarried dipole or monopole. additionally, this authoritative quantity information tools for geolocating the resource of excessive frequency signs with a unmarried sensor web site.

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Extra resources for Electronic Warfare Target Location Methods, Second Edition

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Torrieri, D. , “Statistical Theory of Passive Location Systems,” IEEE Transactions on Aerospace and Electronic Systems, Vol. AES-20, No. 2, March 1984, pp. 183–198. 1 Introduction Triangulation is the appellation applied to estimating a PF by calculating the most likely point for the target, given the intersection of two or more LOBs from sensors at known locations. It is widely used in this role, and there are several techniques available for measuring the azimuth angles of arrival of signals.

Initially consider just two dimensions. There are two sensors, S1 and S2, separated by distance d, and a single target. Of course, the two sensors could be the same sensor that has moved distance d. Each of the sensors computes an LOB relative to some reference, which is the same for both sensors. 2) These notions extend to more than two sensors and to three dimensions in the obvious way, taking two sensors at a time and computing the coordinates of the target. The resulting coordinates can then be averaged.

When ΔD ~  (0, σ 2D ), TLSE estimation is very effective and more accurate than LSE. 1 Brown’s Least-Squares Triangulation Algorithm An algorithm developed by Brown [6] will be presented in this section for calculating the PF, which is based on minimizing the square of the miss distance of the PF from the measured LOBs. This algorithm was presented in [7] and is included here for completeness. 40) 2 i where ai = sin φi bi = − cos φi ci = xi sin φi − yi cos φi N is the number of LOBs Setting the first partial derivative of D with respect to xT and then yT equal to zero will find the values of xT and yT for which the total squares distance is minimized.

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