岸基雷达模拟器的设计与实现

针对岸基雷达工作的海面环境和目标特点，在雷达模拟器中设置了目标的雷达截面积（RCS）起伏、检测概率计算及海杂波模型。对于海面舰船目标而言，其RCS通常受舰船的姿态、方位角等状态影响较大，在此通过计算舰船相对于雷达站的方位实现目标的RCS起伏。再根据目标的RCS利用Albersheim公式即可获得目标的检测概率。另外，雷达的工作状态不同，检测到的海杂波分布模型亦不同。这里介绍了2种最常用的海杂波分布模型，分别是Rayleigh分布和对数正态分布。改进后的雷达模拟器能够更加真实准确地模拟岸基雷达的实际工作环境。

Design and implementation of shore-based radar simulator

The target RCS frustration,detection probability and sea clutter model were set in current radar simulator according to the target characteristics and sea surface environment that the shore-based radar system confronts.As for the moving targets on the sea surface,their RCSs are often affected by the attitude and azimuth angle of vessels.The RCS frustration of the target is realized by calculating the target azimuth relative to radar position.The detection probability of targets can be obtained by Albersheim formula,according to the tardet RCS.Besides,the different sea stray wave distribution models are achieved due to the different woking states of radars.Two common sea stray wave distribution models,i.e.Rayleigh distribution and lognormal distribution,are introduced.The modified radar simulator can simulate the radar working circumstances more realistically and accurately.