基于SAW技术的扩频信号解扩解调模块设计  

Design of De-spreading and Demodulation Module for Spread Spectrum Signals Based on SAW Technologies

作　　者：梁懿[1] 陈婷[1] 

机构地区：[1]中国电子科技集团公司第26研究所,重庆400060

出　　处：《压电与声光》2013年第3期309-311,317,共4页Piezoelectrics & Acoustooptics

摘　　要：介绍了一种基于声表面波技术的扩频信号解扩解调模块的工作原理、模块设计和测试结果。与数字相关器解扩相比,利用声表面波匹配滤波器解扩具有高处理速度和大处理带宽的特点,特别是在实时处理中具有绝对优势。同时,模块采用限幅放大技术可实现信号的大动态范围和高灵敏度接收。The operating principle, design and test results of the de-spreading and demodulation module for spread spectrum signals based on SAW technology have been introduced in this paper. The de-spreading technique based on SAW matched filter has the advantages of high-speed and wide bandwidth over the digital correlator; espe- cially it has overwhelming superiority over its counterpart in the real-time de-spreading process. Meanwhile, the wide dynamic range and high sensitivity receive of signals can be realized since the limiting amplification technique has been used in the proposed module.

关 键 词：声表面波 解扩 解调 限幅放大 

分 类 号：TN914.42[电子电信—通信与信息系统]