在舰载雷达设计和性能评估的过程中,海杂波的仿真模拟是必需的。根据实际雷达回波的信号形式,使用ZMNL法产生距离和方位均统计相关的二维海杂波数据。混沌特性可以用来描述实测海杂波数据,因此使用分形维数和最大Lyapunov指数来评估仿真数据与实测数据的相似程度,从非线性角度描述了二维仿真海杂波的实用性。

The simulation of sea clutter is very necessary in the process of design and performance evaluation of shipborne radar. According to the signal format of real-world echo data, ZMNL method is used to produce correlated two-dimension sea clutter data at range-azimuth directions. Chaos can be used to describe the measured sea clutter data, so fractal dimension and Lyapunov exponents are employed to assess the similarity between simulating data and measured data. Two-dimension sea clutter simulation is proved to be effective from a non-linear view.