基于TDOA与GROA的信号源两步加权多维标度定位技术

Two-Step Weighted Multidimensional Scaling Localization Algorithm Based on TDOA and GROA Measurements

首先利用时差与增益比测量值求得目标与接收站之间的距离值,再利用基于测距定位的多维标度定位技术(MDS)实现目标定位。仿真结果表明,所提算法在参数测量误差较小时能够达到定位CRLB,且性能优于两步加权最小二乘(TSWLS)算法。

This paper consi（iers source localization by utilizing the location equations to obtdistances between the source and the receivers firstly,and then using the multidimensrange-based localization algorithm to implement the source location task. Simulation results show thesolutions of the proposed metliod can achieve CRLB over small noise region and have a beter per-formance than two-step weighted least-scquares （ TSWLS） source localization method.