矢量信号分析中数字解调设计  

Design Technique of Digital Demodulation in Vector Signal Analysis

作　　者：陈向民[1] 

机构地区：[1]中国电子科技集团公司第41研究所

出　　处：《电子测量与仪器学报》2006年第5期98-102,共5页Journal of Electronic Measurement and Instrumentation

摘　　要：由于矢量信号分析的特点,设计和建立矢量解调模型与传统信号分析有较大的区别,同时为了克服硬件方案设计所带来的信号失真影响,以及进行高精度的信号分析,还需要完成大量的矢量解调分析软件。本文对矢量信号分析中的数字解调设计进行了全面分析,详细讨论了数字解调的基本模型和基于矢量信号分析的设计特点,并根据建立的解调模型阐述硬件电路的设计和解调算法的模型结构。通过实验结果表明本文论述的解调设计方案在实际应用中达到了非常理想的效果。Because of the vector signal analysing characteristic, the design and the establishment of vector demodulation model is much different from traditional signal analysis. In order to overcome signal distortion influence caused by hardware design, and carry on high accurate signal analysing, we also need to complete massive vectors demodulation analysis software. In this paper, the design of digital demodulation in the vector signal analysis is roundly analyzed, and it discussed the basic model of digital demodulation and design feature based on the vector signal analysis. The design of hardware circuit and model configuration of demodulated arithmetic are also expatiated according to the demodulated model. The experimental result indicated that the demodulation design scheme in this article has taken an ideal effect in practical application.

关 键 词：矢量信号 数字解调 数字本振 频偏计算 

分 类 号：TM931[电气工程—电力电子与电力传动]