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Thinned linear array using joint optimization of IWDO/FFT algorithm
Journal of Electromagnetic Waves and Applications ( IF 1.3 ) Pub Date : 2021-07-14 , DOI: 10.1080/09205071.2021.1952902
Cheng-Zhang Li 1 , Hai-Ming Li 1
Affiliation  

A sparse array synthesis method based on improved wind-driven optimization algorithm (IWDO) and fast Fourier transform (FFT) for the purpose of sidelobe suppression was introduced. First, the uniform linear array was sparse by the FFT algorithm. Then the amplitude excitation weighting of array elements was optimized by IWDO algorithm based on probability factor chaotic map. During the optimization process, the minimum peak sidelobe level was used as the fitness function. By comparing with the simulation results of classic Chebyshev weighting method, the method proposed in this paper has better performance.



中文翻译:

使用 IWDO/FFT 算法联合优化的细化线阵

介绍了一种基于改进的风驱动优化算法(IWDO)和快速傅立叶变换(FFT)的以抑制旁瓣为目的的稀疏阵列合成方法。首先,均匀线性阵列被FFT算法稀疏。然后采用基于概率因子混沌图的IWDO算法对阵元的幅值激励加权进行优化。在优化过程中,最小峰值旁瓣电平被用作适应度函数。通过与经典切比雪夫加权方法的仿真结果对比,本文提出的方法具有更好的性能。

更新日期:2021-07-14
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