3D传感器检测和跟踪的联合优化

在杂波环境下实现检测－跟踪的联合优化是目标跟踪中的一个重要研究课题。对3D传感器使用PDAF进行目标跟踪的情况，本文以先验检测门限优化准则为设计准则，通过用解析近似表示拟事修正Riccati方程中的参数，给出了瑞利起伏环境下实现检测和跟踪联合优化的方法。研究和仿真表明：（1）这种检测和跟踪联合化化方法的跟踪性能优于固定虚警率方法的跟踪性能，但这种性能的改善主要体现在滤波稳定阶段；（2）基于先验检测门限优化准则实现检测－跟踪的联合优化要求信噪比要大于一定的门限，在瑞利起伏环境下，三维测量所要求的信噪比门限为2．157。

JOINT OPTIMIZATION OF DETECTION AND TRACKING FOR 3D SENSORS

The joint optimization of detection and tracking in clutter is one of the important research issues in target tracking.Based on the criterion of priori detection threshold optimization,this paper first derives an analytic approximation to the (deterministic) modified Riccati equation for the case of 3D measurements and a four sigma validation gate,and then presents a joint optimization method of detection and tracking in Rayleigh clutter environment when PDAF algorithm is used.From the simulation results and the research,it is found that:(1)the performance of the presented method is superior to that of the fixed false alarm probability method,(2)only when the signal to noise ratio is greater than some a value (in Ravleigh clutter environment,the value is 2 157 for 3D sensor and four sigma validation gate),the joint optimization of detection and tracking in Rayleigh fading clutter environment can be obtained.