研究了低入射余角下雷达海杂波的建模、仿真算法及实现问题。根据实际背景 ,对实测数据进行深入讨论 ,建立起一个较为准确的海杂波幅度分布模型与功率谱模型 ;针对非相参和相参两种雷达体制 ,分别采用修正的零记忆非线性变换法和球不变随机过程法来实现具有给定相关性的K分布随机数序列的产生 ,并以VisualC + +为平台实现了仿真软件。仿真结果证明了模型和算法的有效性。 The modeling, simulation algorithm and implementation of radar sea clutter at low incident angles are studied. According to the actual background, the measured data are discussed in depth, and a more accurate sea clutter amplitude distribution model and power spectrum model are established. For non-coherent and coherent radar systems, a modified zero-memory nonlinear transformation And ball-invariant stochastic process method to generate the K-distribution random number sequence with a given correlation, and the simulation software is implemented on the platform of Visual C ++. Simulation results show the effectiveness of the model and algorithm.