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      Multi-TDOA Location Algorithm for Three Satellites TDOA Passive Location System

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          Abstract

          Location precision of radiant source is the primary performance of passive location system, and how to improve location precision is an important problem which always attracts attention. In three satellites TDOA (Time Difference Of Arrival) passive location system, location precision of single pulse location is limited by the error of TDOA measure. For improving location precision of radiant source, multi-TDOA location algorithm which estimates the position of target combining all the TDOAs is proposed in this paper. The new algorithm calculates three satellites’ positions at the arrival time of each pulse firstly, and then combines all pulses’TDOA equations and earth equation, lastly estimates the position of radiant source using least square algorithm. The result of simulations shows that the new algorithm can improve location precision of radiant source, and it is a steady and effective location method with higher location precision.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 September 2012
          : 1
          : 3
          : 262-269
          Affiliations
          [1 ] Institute of Electronics, Chinese Academy of Sciences
          Article
          d63c3041619a4acba0a0e6b7b2a775f0
          10.3724/SP.J.1300.2012.20050

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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