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

Q2 Physics and Astronomy
Ren Wen-juan, Huang Donghui, D. Chibiao
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引用次数: 3

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 Time Difference Of Arrival (TDOA) 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.
三卫星TDOA无源定位系统的多TDOA定位算法
辐射源的定位精度是无源定位系统的主要性能,如何提高定位精度一直是人们关注的重要问题。在三颗卫星到达时间差(TDOA)被动定位系统中,单脉冲定位的定位精度受到TDOA测量误差的限制。为了提高辐射源的定位精度,本文提出了综合所有tdoa估计目标位置的多tdoa定位算法。该算法首先计算每个脉冲到达时三颗卫星的位置,然后将所有脉冲的TDOA方程与地球方程相结合,最后利用最小二乘法估计辐射源的位置。仿真结果表明,该算法能够提高辐射源的定位精度,是一种稳定有效的定位方法,具有较高的定位精度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
雷达学报
雷达学报 Physics and Astronomy-Instrumentation
CiteScore
4.10
自引率
0.00%
发文量
882
期刊介绍: Information not localized
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