舰载雷达实时虚警仿真技术研究

虚警仿真是雷达系统建模仿真和跟踪算法测试评估中一个重要组成部分。现代舰载雷达接收机通常具有恒虚警(CFAR)检测功能，可以根据回波自适应地调整检测门限以达到恒定的虚警率。本文针对舰载雷达提出了一种通用的实时虚警仿真模型，在仿真模型中主要考虑了系统噪声和海杂波对雷达接收机的影响。最后以K分布海杂波为例，通过计算机仿真验证了虚警仿真模型的有效性。

Research on Realtime False Alarm Simulation Methodology of Shipborne Radar

False alarm generation is very important for radar system simulation applied in the study of radar system performance analysis and in the evaluation of track algorithms. Shipborne radar receivers usually comprise constant false alarm rate (CFAR) devices that adjust the detection threshold level adaptively to keep the probability of false alarm. This paper presents a general model of real-time false alarm simulation for shipborne radar. Two main factors, system noise and sea clutter, are considered in this model. At last, the validity of model is proven by simulation results with the K-distributed sea clutter.