基于随机抖动的单比特量化理论分析与仿真研究  

Theoretical analysis and simulation of monobit quantization based on random dithering

作　　者：石荣 阎剑 张聪 

机构地区：[1]电子信息控制国家重点实验室,四川成都610036

出　　处：《现代电子技术》2013年第3期63-66,共4页Modern Electronics Technique

基　　金：国防科技重点实验室基金资助项目(9140C100404120C1002)

摘　　要：为了减小单比特接收机中单比特直接量化所带来的虚假信号问题,采用了基于随机抖动的量化方法,通过建立的理论模型进行分析论证,可以有效减小虚假信号的产生,扩展单比特接收机的多信号接收动态范围,在此基础上通过仿真实验进行了验证,获得了良好的单比特量化效果。该方法具有工程应用流程简洁,多信号接收动态范围宽等特点。For the false signal suppression in direct quantization of a monobit receiver, a quantization method based on ran- dom dithering is put forward. Through the theory model analysis, the false signal is efficiently decreased and the multi-signal receiving dynamic range in the monobit receiver is expanded. The validity of the method is verified through the simulation experiment and the result of monobit quantization is better than before. The method has simple procedure and wide multi-signal receiving dynamic range for engineering application.

关 键 词：单比特量化 随机抖动 虚假信号 接收动态 

分 类 号：TN929.34[电子电信—通信与信息系统]