中文摘要：

雷达杂波的统计特性研究与仿真模拟对雷达系统的设计、仿真、开发有重要意义。文中通过对前向散射雷达地表植被杂波实测数据的处理，观察到前向散射雷达杂波的幅度分布特性可根据风速和动态范围的不同分别采用K分布和对数正态分布拟合；同时杂波数据的谱分析结果表明可以采用全极点模型对前向散射雷达杂波建模。基于对杂波统计特性的分析，文中给出了一种SIRP法和ZMNL法相结合的前向散射雷达杂波模拟方法，模拟得到的杂波与实测杂波数据在统计特性上相一致，证实了模拟方法的有效性。

英文摘要：

The research of statistical properties and simulation methods of radar clutter has vital importance to the de- sign, simulation and development of radar systems. Based on the analysis of sortie experimental data of forward scatter radar （FSR） clutter, it was found that at low wind speed and in narrow dynamic range, the amplitude of FSR clutter was subject to K distribution; while at high wind speed or in wide dynamic range, it was subject to lognormal distribu- tion ; the power spectrum was subject to the all-pole model. With the above statistical analysis, the forward scattering coher- ent clutters were simulated using a method combining zero-memory nonlinear transformation with spherically invariant ran- dom process. The statistical properties of simulated clutter were identical to those of measured clutter, which verified the va- lidity of this method.