针对频繁的抵近电子侦察和隐身突防力量的威胁, 开展基于 L波段导航信号的无源雷达探测技术的研究。其优势在于, 无源雷达探测系统具有良好的四抗性能。通过信号特性分析, 验证了基于 L波段导航信号进行无源探测的可行性。利用几何稀释度 (GDOP)对三坐标定位精确度进行分析, 仿真实验和理论分析验证了所提技术的可行性。

Aiming at the threatening of the electronic reconnaissance and the attacking of the stealth target, the technique of the target detection based on L-band navigation signal is developed for passive radar. Passive radar has advantages over traditional radar on anti-stealth, survivability, anti-jamming capability, etc. The feasibility of the target detection is verified by analyzing the characteristics of the signal. The positioning accuracy of the 3D coordinate for the passive radar is analyzed based on Geometric Dilution Of Precision(GDOP). Theoretical analysis and simulation results validate the proposed technique.