多速率数据采集与处理系统的设计与实现

在非协作通信中需要根据信号带宽调整中频采样速率,以便降低后端盲信号处理的复杂度,实现信号调制方式的识别与信号参数的估计,从而实现信号的解调。本文介绍了一种基于嵌入式计算机模块、高速AD芯片和数据处理软件的多速率数据采集处理系统,该系统具备400ksps至25.6 Msps实时采集和51.2 Msps、80 Msps、93.33 Msps高速采集及信号处理等功能,达到了对中频信号记录和分析目的。

Design and Realization of Multi-rate Data Acquisition and Processing System

In order to achieve signal demodulation,we must adjust IF sampling rate with signal bandwidth In the non-cooperative communication.Because the decrease of sampling rate can reduce the complexity of back-end blind signal processing,and achieve the identification of signal modulation and the estimate of signal parameters.This article describes an approach based on embedded computer modules,high-speed AD chip and data-processing software for multi-rate data acquisition and processing system,which has some func...