Abstract
数字阵列雷达是一种接收和发射波束都采用数字波束形成技术的全数字阵列扫描雷达，是有源相控阵雷达和数字雷达的最新发展方向。本文从数字阵列雷达的基本组成入手，首先分析了数字阵列雷达动态范围低要求、超低副瓣、低截获概率、宽角度扫描等主要特点，最后讨论了工程实现过程中存在的诸如数字TR组件、宽带信号、超低副瓣和通道一致性等技术难点，为数字阵列雷达的深入发展指明了方向。 Digital Array Radar (DAR) is a fully digitized phased array radar in which digital beam forming technique is used both in receiving and transmitting. Firstly, this paper introduced the typical ar-chitecture of DAR. Then, it analyzed the characteristics of DAR, such as the low demand of dynamic range, the ultra low side-lobe, the low probability of Intercept and the broad field of regard. Finally, it discussed the technology problems in the process of engineering realization, including the digital TR Module production, the broadband realization, the ultra low side-lobe and the channel consistency technique. It will be helpful for the fully development of DAR.
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