本文的主要工作是CR实验系统的基带模块的设计与实现以及降低峰均比技术的研究。
This thesis mainly focuses on design and implement of baseband module of CR experimental system and research on reduction of PAPR.
该系统主要采用小灵通基带芯片ML7338（ARM7TDMI核）和RDA5206射频模块，实现对射频信号的解调，同时对基带信号重新编码再调制发射，很好地解决了普通直放站射频干扰问题。
The ML7338(ARM7TDMI core) and RF module RDA5206 are used to demodulate RF signals, recode, remodulate and transmit baseband signals, thus solving the RF interference problem in traditional stations.
本文设计并实现了基带数据处理模块，扩频处理模块，中频调制解调模块，实现了AGC、同步、均衡等方面的保障。
The paper designs and implements the baseband processing module, the spread spectrum processing module, the IF modulation and demodulation, AGC, synchronization, equalization, etc.
然后本文详细介绍了一种二次雷达基带处理的实现，包括其系统构架、硬件模块和软件模块。
Then this paper gives the detail of the base band video signal process system of the Secondary Surveillance Radar, including its system framework, hardware and software parts.
然后本文详细介绍了一种二次雷达基带处理的实现，包括其系统构架、硬件模块和软件模块。
Then this paper gives the detail of the base band video signal process system of the Secondary Surveillance Radar, including its system framework, hardware and software parts.
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