基于TOA算法的民航多基一次监视雷达几何精度因子分析

GDOP Analysis of Multi-static Primary Surveillance Radar in Civil Aviation Based on TOA

对多基一次监视雷达几何精度因子进行了研究。根据民航航路和终端区域的监视需求,提出了采用多个发射站和多个接收站的多基一次监视雷达结构,并根据基于到达时间(TOA)的定位方法推导了最小均方误差位置估计算法和几何精度因子。最后用MATLAB仿真分析了采用不同的地面站布局来改善水平精度因子。仿真结果表明采用多个发射站和接收站结构的多基一次监视雷达能满足民航航路和终端区的监视精度要求。

Geometry dilution of precision（GDOP） of the multistatic primary surveillance radar（MSPSR） is dis- cussed. Based on the requirement of the en route and terminal in civil aviation, the architecture of multiple trans- mitters and receivers of MSPSR was proposed, and the estimation algorithm of least mean squared error （LMSE） and DOP were derived based on the location algorithm for the time of arrival （TOA）. carried out the analysis impro- ving HDOP by different architecture of multiple transmitters and receivers of MSPSR using MATLAB. The result shows the architecture of multiple transmitters and receivers of MSPSR can meet the civil aviation surveillance accu- racy requirement in en route and terminal.