摘要
多基雷达系统(MSRS)可以大大提高目标定位性能,然而由于各个雷达站信噪比的差异,通常存在一些雷达站尚未建立目标航迹,从而不能最大程度地提高目标定位精度。因此,如何利用其它雷达站提供的目标跟踪信息,提高尚未建立目标航迹的雷达站的探测性能是一个值得研究的问题。为此,该文提出一种基于跟踪信息的航迹起始算法。首先将已经跟踪到目标的雷达站提供的目标跟踪信息,送至尚未建立目标航迹的雷达站;然后利用目标跟踪信息和目标运动模型,建立目标预测波门;最终在虚假航迹起始概率恒定的条件下,调整预测波门内的检测门限,完成目标检测和航迹起始过程。仿真实验表明,该算法可以大大提高目标检测概率和目标航迹起始概率。
Multi Site Radar Systems（MSRS） can significantly improve target localization performance. However, due to the difference of signal-to-noise ratios of separate radar sites, there usually exist some radar sites that have not initiated a target track, hence target localization accuracy can not be improved to the best. So an interesting problem is how to use target tracking information provided by other radar sites to improve the detection performance of the radar sites that have not initiated the target track. In this paper, a track initiation algorithm based on tracking information is proposed. Firstly, the target tracking information provided by the radar sites that have already tracked a target is transmitted to the radar sites that have not initiated the target track. Then, a predicted gate is established according to the tracking information and target dynamic model. Finally detection thresholds in the predicted gate are adjusted under a constant probability of false track initiation, and target detection and track initiation are accomplished. Numerical results indicate that the proposed algorithm can significantly improve the probability of target detection and target track initiation.
出处
《电子与信息学报》
EI
CSCD
北大核心
2015年第10期2536-2540,共5页
Journal of Electronics & Information Technology
基金
国家自然科学基金(61401329
61271024
60901065)~~
关键词
雷达
航迹起始
跟踪信息
预测波门
虚假航迹起始概率
Radar
Track initiation
Tracking information
Predicted gate
Probability of false track initiation
作者简介
通信作者：刘红亮hlliuxidian@gmail．com刘红亮：男，1989年生，博士生，研究方向为目标检测、目标跟踪与定位、协同探测．
但晓东：男，1989年生，硕士生，研究方向为目标检测、目标跟踪与定位、协同探测．
周生华：男，1982年生，博士，副教授，研究方向为MIMO雷达、协同探测．
刘宏伟：男，1971年生，博士，教授，博士生导师，研究方向为雷达系统、雷达信号处理、雷达自动目标识别等
