一种多传感器目标跟踪中的简单切换方法

本文基于一种快速卡尔曼滤波的跟踪算法,利用已经确定的传感器布局信息,预先计算出不同空间位置上不同传感器组合的GDOP因子,并根据GDOP建立了多传感器的切换准则.从而可以在目标航迹的不同阶段上,选取最优GDOP的传感器组合,用尽可能少的传感器对机动目标进行精确跟踪.仿真结果表明该方法不仅降低了算法的计算量,而且仍然能够保持良好的跟踪性能.

A simple sensor switching scheme for multisensor target tracking

Based on the GDOP of target localization, a switching scheme between multisensor groups is proposed for precisely tracking a target by a fast Kalman filtering algorithm. Under the given distribution of multisensor system, the switching criterion can be set in advance through calculating and comparing the GDOPs of different multisensor groups at the same target position. Therefore, the optimal multisensor group can be selected to track the target, and the number of tracking sensor at one group can be reduced as soon as possible. Simulation results show that this switching method can improve the computation efficiency of tracking algorithm with acceptable tracking performance.