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为了提高多站无源定位精度,以LS算法的GDOP为基础对多站测向交叉定位的最佳配置形式进行了分析.指出当目标位于多传感器形成的闭合区域内、外侧时,其最佳配置形式是各相邻传感器间夹角相同,且传感器位于以目标位置(同时为坐标系原点)为圆心的外接圆上;如果在该最佳形式中没有对相邻夹角的限制,则LS算法可以达到方差最小意义下的最优估计;文中同时对最优估计及最佳配置条件下LS算法的一致性进行了分析.仿真结果验证了最佳配置形式的分析,并指出该形式可以应用到基于传感器管理的多站无源定位算法中.
In order to improve the accuracy of multi-station passive location, the optimal configuration of cross-location of multi-station direction finding is analyzed based on GDOP of LS algorithm, and it is pointed out that when the target is located inside and outside of the closed area formed by multi-sensor, Configuration is the same angle between adjacent sensors, and the sensor is located on the circumcircle centered on the target position (also the origin of the coordinate system); if there is no limit on the included angle in the best form The algorithm can achieve the optimal estimation in the minimum sense of variance. In the meantime, the consistency of the LS algorithm under the optimal estimation and optimal configuration conditions is analyzed. The simulation results verify the analysis of the optimal configuration form and point out that the form can be applied To multi-station passive location algorithm based on sensor management.