An Active Anti-Jamming Approach for Frequency Diverse Array Radar with Adaptive Weights

Abstract

Due to the rapid development of electronic countermeasures (ECMs), the corresponding means of electronic counter countermeasures (ECCMs) are urgently needed. In this paper, an active anti-jamming method based on frequency diverse array radar is proposed. By deriving the closed form of the phase center in a uniform line array FDA, we establish a model of the FDA signal based on adaptive weights and derive the effect of active anti-jamming in this regime. The proposed active anti-jamming method makes it difficult for jammers to detect or locate our radar. Furthermore, the effectiveness of the two frequency increment schemes in terms of anti-jamming is analyzed by comparing the deviation of phase center. Finally, the simulation results verify the effectiveness and superiority of the proposed method.

Keywords

frequency diverse array (FDA) / active anti-jamming / adaptive weights / phase center deviation