Sidelobe Suppression Approach at Subarray Level for Sum and Difference Beam without Analog Weighting

摘要：

In phased array at subarray level with monopulse technology, generally, analog weighting at element level are adopted for sidelobe suppression of patterns, while digital weighting at subarray level for adaptive processing. This paper studies the sidelobe suppression method for sum and difference beam by using only subarray level weighting instead of analog weighting, which is most of interest for the reduction of hardware cost and complexity. A new approach is presented, which adopts genetic algorithm (GA) to optimize weights vector at subarray level for sum and difference beam, and the encoding scheme, constitution of fitness function, and realization of genetic optimization are also given. Simulation results demonstrate that the proposed method can suppress sidelobe of patterns effectively, especially for sum beam.

关键词： Weighting at subarray level genetic algorithm sum beam difference beam sidelobe suppression

作者: Hu Hang Gao Conghui Yu Xiaoyang

作者单位: School of Electronics and Information Technology, Harbin Institute of Technology, Harbin, 150001, P. College of Measure & Control Technology and Communication Engineering, Habrin University of Sience a

会议类型: 国际会议

会议名称: 2012 5th Global Symposium on Millimeter-Waves(2012年第五届全球毫米波会议 GSMM 2012)

会议地点: 哈尔滨

会议语种:英文

页码: 59-62

在线出版日期: 2012-05-27（万方平台首次上网日期，不代表论文的发表时间）