Abstract

Frequency diverse array (FDA), which can be combined with Multiple-input-Multiple-output (MIMO) to improve the performance of system, and the range information provided by FDA-MIMO radar provides a new idea for suppressing main lobe interference. However, the periodicity of the angle-range two-dimensional beam pattern also causes some safety hazards to the radar beamforming process. When the interference is located in the grating lobe of FDA-MIMO radar, the related algorithm of beamforming will appear serious distortion. The traditional nonlinear frequency offset method to remove the periodicity of the beam pattern will cause the problem of large main lobe width. In this paper, a new log function frequency offset is proposed, which can not only achieve the periodic removal of the FDA-MIMO radar beam pattern but also has a narrower main lobe bandwidth of 3dB compared with the traditional nonlinear frequency offset method

Details

Title
Main lobe interference suppression by FDA-MIMO radar based on a novel log function frequency offset
Author
Lv, Jihui 1 ; Xue, Jinghong 2 

 School of Information and Electrical Engineering, Harbin Institute of Technology (Weihai) , Weihai, Shandong , China 
 School of Information and Electrical Engineering, Harbin Institute of Technology (Weihai) , Weihai, Shandong , China; Weihai STAR ELECTRONICS Ltd , Weihai, Shandong , China 
First page
012008
Publication year
2022
Publication date
Dec 2022
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2753722076
Copyright
Published under licence by IOP Publishing Ltd. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.