空军工程大学学报2025，Vol.26Issue(1)：50-58,9.DOI:10.3969/j.issn.2097-1915.2025.01.007
一种基于改进编码器-解码器的阵列稳健波束形成方法
An Improved Encoder-Decoder Based on Array Robust Beam-Forming Method
摘要
Abstract
Aimed at the problems that side-lobe level is on the increase,nulls are shifting,and even beam-pattern distortion of array antenna is induced by unavoidably existing array errors in practical scenarios,this paper proposes a robust array beamforming method based on an improved encoder-decoder structure.There are models of encoder and decoder in design based on one-dimensional convolutional neural network(1D-CNN)and artificial neural network(ANN),and the encoder and the decoder separately play the role of array synthesizer and analyzer respectively.Specifically,the decoder is firstly trained to establish a mapping relationship between the excitation weight vector of the actual array and the beampattern where the array errors is taken into consideration during the training process.Secondly,the encoder is trained to establish a mapping relationship between the desired beampattern and the required excitation weight vector by combining the trained decoder.And then,continuously iterate is made,and the optimal excitation weight vector is obtained ultimately.To verify the effectiveness of the method,two typical beampattern synthesis,i.e.,achieving-45 dB single nulling and-40 dB multiple nulling with-20 dB low sidelobes,are conduced based on 16-element array in the presence of array errors.The simulation results show that the proposed method is valid.关键词
波束形成/编码器-解码器/低旁瓣/神经网络/阵列误差Key words
beam-forming/encoder-decoder/low side-lobe level/neural network/array errors分类
信息技术与安全科学引用本文复制引用
刘子雄,徐艳红,崔灿,王安义,范旭慧..一种基于改进编码器-解码器的阵列稳健波束形成方法[J].空军工程大学学报,2025,26(1):50-58,9.基金项目
国家自然科学基金(62271386,61901357) （62271386,61901357）
陕西省科协青年人才托举计划项目(20230149) （20230149）
