【作者】 杨峰； 梁彦； 叶亮； 潘泉；

【Author】 Yang Feng~1,Liang Yan~1,Ye Liang~1,Pan Quan~1 1.School of Automation,Northwestern Polytechnical University,Xi’an,710072

【机构】 西北工业大学自动化学院；

【摘要】 与纯粹的仿真模拟系统不同,实际多目标跟踪系统在性能评估中需要采用不同的航迹源确定方法。这是因为实际系统的数据关联通常是不输出的。此外,性能评估指标的计算也必须适用于变采样率的情况。本文在量测空间求取航迹的状态估计与该时刻各量测的统计距离,利用最近邻准则确定了航迹的目标源归属。通过建立航迹与目标源的关联矩阵,给出了一组适用于TAS和TWS工作模式的性能评估指标的计算方法。该方法已应用于实际雷达的多目标跟踪性能评估系统—TrackEnviro。更多还原

【Abstract】 To evaluate the performance of real multiple-target tracking systems,instead of their simulative systems,the signal origin of each track should be determined in the different form because the data association in real systems is absolutely unknown.In addition,the calculation of performance indices should be suitable for the case of variable sampling interval.Here the state estimate of each track is projected into measurement space and the statistical distance between this projection and each simultaneous measurement is calculated.Hence the signal origin of that track can be determined via the rule of Nearest Neighbor.Based on the relationship matrix with respect to track and signal origin,a new method to calculate a suit of performance indices for both TAS and TWS modes is proposed.This method has been adopted in our TrackEnviro—a evaluation system for the multiple-target tracking performance of real phased array radar.更多还原