捷变频雷达自适应抗干扰控制器设计

Design of Controller for Frequency Agility Radar

摘要:

自适应定频是针对广谱干扰频谱存在频谱凹点和凹区这一特点的重要的抗干扰措施。基于单片机的定频控制器是在原有捷变频雷达系统的基础上进行的改进设计。文章详细介绍了控制器的工作原理、硬件组成及软件设计。该控制器以单片机为核心,通过频谱分析找出干扰频谱的凹点和凹区,然后控制磁控管以该凹点和凹区的频率进行定频工作,达到抗干扰的目的。

Abstract:

The adaptive fixed frequency is an important anti-interference measure aiming at the frequency spectrum pit and concavity in disturb frequency spectrum. The fixed frequency controller based on MCU is an improved design over the original frequency agile change radar. In this paper, the operating principle of controller, hardware composition and software design were introduced in detail. The controller centers on MCU and determines frequency spectrum pit or concavity by analysis of frequency spectrum, and then makes the magnetron fixed on spectrum pit or concavity to realize anti-interference.