摘要
首先介绍无记忆非线性变换(ZMNL)、球不变随机过程(SIRP)、混沌模型(CHAOS)3种杂波模拟的基本方法。然后利用ZMNL对地基雷达中常见的地杂波、气象杂波、箔条杂波、海杂波等各种雷达杂波类型进行建模和计算机仿真。最后给出了模拟杂波数据的概率密度和功率谱密度曲线,结果可以与理论值相比拟,进一步验证了ZMNL杂波建模的有效性和准确性,因此仿真数据可以应用于杂波模拟系统。
At first, introduces three basic methods for simulating clutter by zero memory nonlinearity transform （ZMNL）, spherically invariant random processes （SIRP）, chaos model. Then, Modeling and simulation some kinds of radar clutter by ZMNL, such as ground, weather, chaff and sea clutter. At last, give the probability density and power spectrum density of simulated clutter, the obtained results can be assimilate to the theory value, thus proving the validity and veracity of clutter modeling by the method of ZMNL, and the simulated signal can be used in the simulation of radar systems.
出处
《兵工自动化》
2009年第12期25-28,共4页
Ordnance Industry Automation
基金
陕西省自然科学基金(SJ08F06)
关键词
雷达杂波
统计特性
无记忆非线性变换(ZMNL)
雷达
建模与仿真
Radar clutter
Statistic characterization
ZMNL （Zero Memory Nonlinearity Transform）
Radar
Modeling and simulation
