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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。
Aiming at the shortcomings of the traditional track initiation algorithm in the application of purely azimuth target location and tracking system, a fast track initiation algorithm based on angular measurement is proposed. The method gives a new construction method of the related door by deeply analyzing the movement characteristics of the target under the angular coordinates. The gate technology effectively improves the confirmation efficiency of the real measurement of the pure azimuth two-dimensional target, which greatly limits the expansion of the false track with dense clutter. Using this gate, a target-only, angular-only track is extended using a logic-based approach. The method effectively solves the problem of the decrease of the starting resolution of the maneuvering target in the angle coordinate system, and provides a new idea for the fast and accurate starting of the track based on the pure azimuth tracking system of a single passive sensor. Simulation results and practical applications show the effectiveness and practicability of this algorithm.