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.
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