设模拟带通信号频率范围1KHz—1.1KHz，设计一个采样频率8KHz数字频谱分析系统，要求频率分辨率0.1Hz。若对信号直接用FFT进行频谱分析-simulation based communications, with the frequency range 1KHz - 1.1KHz. Design of an 8 KHz sampling frequency digital spectrum analysis system requirements frequency resolutio

通过TLC320AD50采集音频信号(f.max<10kHz)，编写DSP的FFT处理程序（自定频谱分辨力），获得幅频特性之后，在点阵液晶(128*64)中大致显示出幅频图。并在液晶中用文字显示频率幅值前三的频率值。-By TLC320AD50 capture audio (f.max < 10kHz), the preparation of the FFT DSP processing (custom spectral resolution), obtained after the

现代频谱估计是非线性估计，在20世纪70年代后发展起来，具有较高的频率分辨率-Modern spectrum estimation is a nonlinear estimation, developed in the 1970s, has a higher frequency Resolution.