Research on Pattern Synthesis of Time Modulated Sparse Array Based on Discrete Variable Convex Optimization. (9th April 2021)

• Record Type: Journal Article
• Authors: Tan, Jing; Hu, Jiawen; Dong, Xikuan; Li, Hailin; Zhou, Jianjiang
• Other Names: Cai Zhipeng Academic Editor.
• Is Part Of: Wireless communications and mobile computing. Volume 2021(2021)
• Publication Date: 2021-04-09
• Subjects: Wireless communication systems -- Periodicals; Mobile communication systems -- Periodicals; 621.38205
• DOI: 10.1155/2021/6622168
• Languages: English
• ISSNs: 1530-8669

Abstract

Abstract : Effective resource utilization is an important problem in the application of array, especially for the new time modulated array. Considering the problem of full utilization of array elements in time modulated array, a sparse optimization algorithm based on discrete variable convex optimization is proposed in this paper. The pattern optimization of equal excitation time modulation array is realized in two stages: In the first stage, the number of working array elements is as low as possible under the condition of suppressing the sidelobe of the central frequency. In the second stage, the sideband is suppressed by iterative convex optimization. The numerical simulation results are compared with other methods to verify the effectiveness of the proposed method in pattern optimization of equal excitation time modulation array. Finally, the optimization performance of the algorithm with different array parameters is verified.