Institute of Traffic Telematics, Technische Universität Dresden, 01062 Dresden, Germany.
Sensors (Basel). 2021 Jun 8;21(12):3946. doi: 10.3390/s21123946.
Passive ground emitter geolocation techniques are essential to electronic warfare systems, as they provide threat warnings in hostile environments, while ensuring the electronic silence of the mission platform. Geolocation of enemy emitters indicates the position of and type of adversary troops, and allows for the use of guided munition against enemy targets. Three-dimensional geolocation solutions based on least squares and particle filter estimation, using only azimuth and elevation measurements, were considered. Three batch-processing and one instantaneous solution algorithms, i.e., using a single pulse or a single observation point, were developed and investigated. The performance of the proposed solutions was demonstrated by simulations. Results showed that the batch-processing solutions achieved acceptable accuracies with a sufficient number of observation points. The performance degraded with fewer observation points. The instantaneous geolocation solution improved performance with increasing observation points, i.e., working in the sequential mode, and therefore could approach the accuracy of the batch-processing solutions.
被动地面辐射源测向定位技术是电子战系统的关键技术之一，它能够在复杂电磁环境下提供威胁告警，保证任务平台的电磁静默。敌方辐射源的定位可以指示敌对阵营的位置和类型，并允许使用制导武器打击敌方目标。本文考虑了基于最小二乘和粒子滤波估计的三维测向定位方法，仅使用方位和俯仰测量值。本文开发并研究了三种批处理和一种瞬时解决方案算法，即使用单个脉冲或单个观测点。通过仿真验证了所提出解决方案的性能。结果表明，批处理解决方案在足够数量的观测点下可以达到可接受的精度。随着观测点数量的减少，性能会下降。瞬时测向定位解决方案通过增加观测点（即采用序贯模式）提高了性能，因此可以接近批处理解决方案的精度。
