FFT实时信号分析仪是一个多功能数字化信号分析系统,它能对声频信号进行功率谱、相关、褶积和概率密度等实时分析。本仪器采用基2Cooley-TukeyFFT算法和奇型离散付里叶变换原理,采用简单的单运算器和单存储器的逐次式结构,采用微程序控制并设置了微诊断程序。本文简要介绍了该机的性能特点,设计原理及主要部件的硬件设计。 FFT Real-Time Signal Analyzer is a versatile digital signal analysis system that analyzes real-time power spectrum, correlation, convolution, and probability density of audio signals. The instrument based on 2Cooley-TukeyFFT algorithm and odd discrete Fourier transform principle, using a simple single-operator and single memory sequential structure, the use of micro-control procedures and the establishment of micro-diagnostic procedures. This article briefly describes the performance characteristics of the aircraft, the design principle and the main components of the hardware design.