基于双站距离空间投影的多目标定位方法

摘要

This paper introduces a localization method based on observation space projection , analy-ses its deficiencies .A multi-sensor multi-target localization approach based on Bistatic Range space pro-jection is proposed and the model is built , which can solve the space-varying problem influencing the lo-calization precision .Meanwhile , the probability information of echo data is chosen to be the information to improve the localization accuracy further .Finally, the greedy cleaning strategy is used to eliminate the sidelobe and improve the extraction accuracy of target position .The simulation experiments verified the ef-fectiveness of this method , and the positioning precision can be significantly improved comparing with the method based on observation space projection .%介绍了基于观测空间投影的定位方法，分析了其存在的问题，提出了一种基于双站距离（ BR）空间投影的传感器网络多目标定位方法，建立了BR空间投影模型，解决了影响定位精度的空变性问题。同时，该方法将回波的概率信息作为投影量，进一步提高定位精度。最后，采用贪婪清除策略抑制旁瓣，提高目标位置的提取精度。仿真实验验证了该方法的有效性，与基于观测空间投影的方法相比，该方法的定位精度得到了明显提高。