一种实时系统中的信号处理实现

A Method of Signal Processing in a Real-time System

近年来,对实时信号处理系统的要求越来越高,所用系统要具有处理大量数据的能力,这就要求系统硬件运算速度快,软件处理程序尽可能优化,以保证系统的实时性。基于某重点工程项目,采用FPGA(现场可编程门阵列)和ADSP-TS101S系统,对高速实时并行处理进行研究,介绍了一种高速数据并行处理系统,说明了DSP(数字信号处理器)中信号处理程序的操作流程。该系统能对输入信号的频谱进行分析,实时输出连续波频谱或脉冲波的时域频域信息,并已测试成功。

In recent years, the requirements to real-time signal processing system are becoming higher and higher. It requires that the system has the ability of processing a large numbers of data, to implement a realtime system. In this instance, the hardware requires very high rate of operation, and the program of the software should be optimized. Based on one key project, using FPGA and ADSP-TS101S, this paper studies the high-speed digital parallel processing, introduces a high-speed digital parallel processing system. The flow of chart operation of the signal processing program in DSP is described in detail. The system which has test successfully can analyze the frequency spectrum of input signal and output spectrum of continuous wave or the information in the frequency-time domain of the pulse.