论述了某航天器伪码测距雷达接收机外部AGC的设计原理和具体实现,并重点讨论了如何根据射频前端的输出来设计全数字AGC,来扩展接收机的动态范围.该文的讨论对于DS-SS（扩展频谱数字）接收机和伪码测距雷达接收机的数字AGC设计有参考意义.

This paper analyses the design and implementation of an external AGC system for a PN-code ranging radar's receiver in an space vehicle,and focuses on discussing of how to design an all-digital AGC according to the output of the front-end device to extend the dynamic range.The discussion of this paper is valuable for the design of digital AGC in DS-SS(DirectSequence Spread-Spectrum) receiver or in PN-code ranging radar receiver.

TN957.5