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Derivation and Analysis of CRLB for Moving Multi-station Passive Location Based on TDOA
Received date: 2013-02-07
Online published: 2025-05-26
The problem of position accuracy in moving multi-station passive location system was investigated based on TDOA. According to the theory of the least square error unbias estimate, a location precision method based on Cramer-Rao lower bound (CRLB) for multi-station TDOA location systems was deduced, and the factors including the multi-station configuration, the measure precision and the sampling speed, which affecting the location precision were also analyzed. It is concluded that a favourable configuration of receivers and faster measure velocity will improve the location precision. The theory analysis and simulation results are useful for confirming technique guide line in moving multi-station passive location system.
Key words： multi-station passive location; TDOA; CRLB; position accuracy
LI Hongwei , HE Qingyi , LI Chun . Derivation and Analysis of CRLB for Moving Multi-station Passive Location Based on TDOA[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2013 , 33(6) : 167 -170 . DOI: 10.15892/j.cnki.djzdxb.2013.06.051
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