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数据采集、声图计算和声图显示三者的实时处理是数字化实时声图仪的关键技术和主要功能.本文介绍在386微机上加装高速信号处理板完成FFT运算、功率谱计算和声图灰度量化等功能的方案设计.
Real-time processing of data acquisition, sound graph calculation and sound image display is the key technology and main function of digital real-time sound image instrument.This paper introduces the application of high-speed signal processing board on the 386 microcomputer to complete FFT calculation, power spectrum calculation and sound image Gray scale quantify the function of the program design.