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Passive positioning technology and its accuracy analysis

Author: LiuZuo
Tutor: ChenHongLin
School: Northwestern Polytechnical University
Course: Systems Engineering
Keywords: Passive Location Finding Location Measured TDOA location DF measured TDOA Error Extension Doppler frequency difference
CLC: V249
Type: Master's thesis
Year: 2005
Downloads: 1289
Quote: 17
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Abstract


As electronic radar jamming and anti-radiation missiles against rapid technological development, as the representative of an active radar detector positioned under increasing threat . Because passive positioning technology in itself does not radiate energy conditions, covertly determine the location of the radiation source , with the role of distance, the characteristics of strong anti-interference ability , to improve the system in an electronic warfare environment, the viability and operational efficiency has very important role, so for passive location technology research gaining national attention . This paper studies the passive positioning of the three basic positioning system : passive direction positioning, positioning and passive measuring the time difference measurement method to measure the time difference joint positioning positioning algorithm , and the performance of the respective positioning of theoretical analysis and computer simulation , simulate various fabrics stations , measurement error and various subsets of different measurement situations , all three positioning methods corresponding to each positioning accuracy (GDOP) distribution , obtained some valuable theoretical and simulation results , the conclusions for future research in this area to provide a technical reference . Also made ??a number of methods to eliminate vague position . Finally, the motion single station for fixed two-dimensional and three-dimensional passive emitter localization problem is studied . Among them, the three-dimensional single observer passive location problem discussed in the airborne electronic reconnaissance equipment has an important application value.

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CLC: > Aviation, aerospace > Aviation > Aircraft instrumentation,avionics, flight control and navigation > Flight control system and navigation
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