FPGA自重构技术在雷达高度计中的应用

Self-reconfiguration based on FPGA utilized in radar altimeter

新一代高精度雷达高度计具有低分辨率工作模式和SAR工作模式两种方式,这两种方式的硬件工作时序是不同的,FPFA的动态可重构技术为实现这两种工作时序的切换提供了有效的手段。本文采用FPGA动态重构技术,进行了高精度雷达高度计工作时序的设计和实验验证,结果表明采用本文的方法可以正确实现高精度高度计两种硬件工作时序的切换。

New generation radar altimeter with high precision works in both low resolution mode and SAR mode, and the two modes need different timing circuits which can be switched without interrupting other operation. In this paper, the dynamic self-reconfiguration based on FPGA is utilized in the design for the altimeter control unit, and by which the different timing control can easily be realized for the two modes of altimeter. A demonstration circuit has been developed and the results show that this method is viable for the high precision radar altimeter.