摘要
研究具有任意功率谱特性的雷达杂波产生方法.将杂波产生转化为参数优化问题,并应用遗传算法对其进行求解.以具有对数正态分布和高斯谱特性的雷达杂波产生为例,讨论遗传算法的实现过程.设计了一种谱估计子,按照该估计子可使遗传算法找到较优的滤波器系数,得到满意的杂波谱特性.仿真结果表明,所提出的杂波产生方法能够产生满足要求的幅度分布和功率谱特性的杂波.
The generation of radar clutter with arbitrary spectrum property is discussed.It can be regarded as a problem of parameter optimization that can be resolved by genetic algorithm. The process of realizing the genetic algorithm is presented by the clutter which has the log arithmic normal distribution and Gaussian spectrum. A spectrum estimation operator is designed and applied in the genetic algorithm to derive the filter coeffients so as to get the satisfactory spectrum property. Simulation results show that the proposed clutter generation method can generate the clutters having the desired amplitude distribution and spectrum property.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2004年第5期446-449,共4页
Transactions of Beijing Institute of Technology
关键词
遗传算法
对数正态分布
海杂波
无记忆非线性变换
genetic algorithm
log arithmic normal distribution
sea clutter
zero memory nonlinearity transfer
