Joint TDOA ranging and locating algorithms for TDMA multi-target

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (32): 121-124.

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Joint TDOA ranging and locating algorithms for TDMA multi-target

WANG Xu1，2, HE Zishu2

1.Southwest Electronics and Telecommunication Technology Research Institute, Chengdu 610041, China
2.School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China

Online:2012-11-11 Published:2012-11-20

多个TDMA目标联合时差测距与定位算法

王旭1，2，何子述2

1.西南电子电信技术研究所，成都 610041
2.电子科技大学电子工程学院，成都 611731

Abstract

Abstract: Based on the relationship of the transmitting times of multi-target slot signals in the TDMA（Time Division Multiple Address） time synchronization system, a kind of two-target joint ranging algorithm and multi-target weighted least square ranging algorithm are proposed for realizing the TDOA（Time Different Of Arrival） locations of TDMA multi-target. The problems of ambiguity and non-solution are avoided. Due to making use of all the TDOAs of multi-target to locate any one target, the positioning accuracy for all targets is improved in the multi-target situation. Simulation results illustrate the efficiency of the proposed algorithm.

Key words: Time Division Multiple Address（TDMA）, passive location, multi-target, Time Different Of Arrival（TDOA）, range estimation, Weighted Least Square（WLS）

摘要： 根据TDMA系统时间同步特征，利用多个目标时隙信号的时间关系，提出一种两目标联合时差测距算法和多目标加权最小二乘测距算法，并实现多个目标的定位。该算法能够消除传统时差定位算法中的模糊和无解情况，由于利用所有目标的时差信息对目标进行定位，在多目标情况下提高了目标定位的精度。仿真结果验证了算法的有效性。

关键词: 时分多址系统, 无源定位, 多目标, 到达时差, 距离估计, 加权最小二乘法

WANG Xu1，2, HE Zishu2. Joint TDOA ranging and locating algorithms for TDMA multi-target[J]. Computer Engineering and Applications, 2012, 48(32): 121-124.

王旭1，2，何子述2. 多个TDMA目标联合时差测距与定位算法[J]. 计算机工程与应用, 2012, 48(32): 121-124.

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Joint TDOA ranging and locating algorithms for TDMA multi-target

多个TDMA目标联合时差测距与定位算法

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