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。
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.
出处
《计算机工程与应用》
CSCD
2012年第32期121-124,175,共5页
Computer Engineering and Applications
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
Time Division Multiple Address （TDMA）
passive location
multi-target
Time Different Of Arrival （TDOA）
range estimation
Weighted Least Square （WLS）
