PFDA阵列点状波束形成及干扰抑制特性研究

doi:10.3969/j.issn.1001-506X.2020.02.01

Abstract

Abstract:

The frequency diverse array (FDA) is able to increase the freedom of beamforming. This feature provides improvements in performance of radar in space, time and frequency control. This paper analyses the planar FDA (PFDA), which is less studied in the existing literature. At first, the array structure and received signal processing architecture of the PFDA analyzed. Then the time-variant offset of the PFDA is derived. Then the PFDA is divided into single-side subarray-based PFDA, symmetric subarray-based PFDA and cross subarray -based PFDA. And the nonlinear frequency offset is introduced into the array element to realize the range-angle decoupling of the beampattern. In addition, a robust beamforming technique based on the PFDA is performed. Finally, comparative simulation results validate the effectiveness of the proposed method.

Key words: planar frequency diverse array (PFDA), time-variant offset, decoupling, subarray, transmit beampattern, beamforming

CLC Number:

TN95

Bo WANG, Junwei XIE, Jing ZHANG, Ziren WANG. Dot-shaped beamforming and interference suppression analysis based on the PFDA[J]. Systems Engineering and Electronics, 2020, 42(2): 253-262.

Figures/Tables 14

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Dot-shaped beamforming and interference suppression analysis based on the PFDA

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