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常规频率分集阵列(FDA)雷达相较于传统相位控制阵列雷达具备独特的距离-角度均相关的波束特性,近年来多种不同形式的FDA雷达得到了广泛关注与深入研究,文中对基于固定频偏和对数频偏的FDA雷达波束特性进行了较为详细的分析,利用MATLAB对两种形式的FDA雷达波束特性进行了仿真与比较。结果表明,通过改变阵元间的频偏形式、频偏量大小等,能有针对性地形成满足雷达不同探测需求的FDA雷达波束特性,能适应多变的探测环境和抑制干扰、提高目标探测能力。
Conventional frequency diversity array (FDA) radars have unique distance-angle related beam characteristics compared with traditional phase-control array radars. In recent years, many different types of FDA radars have been widely studied and deeply studied. In this paper, Partial and logarithmic frequency deviation of the FDA radar beam characteristics of a more detailed analysis of the use of MATLAB for the two forms of the FDA radar beam characteristics were simulated and compared. The results show that by changing the frequency offset between the array elements, the amount of frequency offset and so on, the radar beam characteristics that can meet the different detection requirements of the radar can be specifically targeted to adapt to the changing detection environment and suppress the interference and improve the target detection ability.