摘要
介绍了利用遗传算法优化非均匀阵列天线的测向性能。遗传算法是一种全局性搜索算法,在整个优化过程中只需要确定算法的适应度函数,不需要借助其它信息。文中提出的方法充分利用这个特点,通过一个入射方向准确已知的信号源完成非均匀阵列的优化。计算机彷真结果表明利用遗传算法优化后的非均匀阵列的测向性能有很大提高,从而验证了这种方法的有效性。
This paper presents a new arrangement method for the non-uniform linear array by genetic algorithm.Genetic algorithm is a global search method, and it needs nothing except fitness function in its optimization process. The method of the paper makes fully use of this advantage to optimize the performance of non-uniform linear antenna with a source. And the DOA of the source must be known exactly in advance. Computer simulation results indicate there is great improvement in estimation DOA by optimized non-uniform linear antenna array, which has proved validity of this method.
出处
《通信技术》
2005年第S1期49-51,54,共4页
Communications Technology
关键词
非均匀阵
DOA估计
遗传算法
non-uniform linear antenna array
DOA estimation
genetic algorithm
