摘要
针对传统航迹起始算法在纯方位目标定位和跟踪系统应用中存在的弊端,提出了一种完全基于角度量测的快速航迹起始算法。该方法通过深入分析目标在角度坐标下的运动特性,给出了全新的关联门构造方法。该波门技术有效提高了纯方位二维目标真实量测的确认效率,极大限制了虚假航迹随密集杂波的扩张。利用此波门,通过基于逻辑的方法对仅有角度量测的目标航迹进行扩展。该方法有效地解决了角度坐标系下机动目标的航迹起始分辨率下降的问题,为基于单个被动传感器纯方位跟踪系统进行快速、准确的航迹起始提供了新的思路。仿真结果及实际应用表明了此算法的有效性和实用性。
This article proposes an angle-measurement based fast track initiation algorithm to overcome the existing problems in the application of traditional track initiation approaches for bearing-only target locating and tracking systems. In this algorithm, a new tracking filter association gate method is developed through analysis of the target motion characteristics in polar coordinates. As a result, the two-dimensional bearing-only measurement confirming efficiency of real targets is noticeably improved and false track overextension with dense clutter is greatly limited. Then, the target tracks with angle measurements are extended based on a log- ic-based approach by using these gates. This algorithm effectively improves the track initiation resolution of maneuvering targets in polar coordinates. It provides a fast and exact track initiation solution for the bearing- only tracking system using a single passive sensor. The application of the proposed approach in simulation and an engineering system proves its effectiveness and practicability.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2009年第4期692-697,共6页
Acta Aeronautica et Astronautica Sinica
基金
国家"973"基础研究(2001CB309403)
关键词
目标
跟踪
航迹起始
纯方位跟踪
关联门
targets
tracking
track initiation
bearing-only tracking
association gate
