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于 2018-11-17 发布 文件大小:142KB
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  本实验要求基于声卡与MATLAB实现音频信号频谱分析仪的设计原理与实现,功能包括: (1)音频信号输入,从声卡输入、从WAV文件输入、从标准信号发生器 输入。 (2)信号波形分析,包括幅值、频率、周期、相位的估计,以及统计量 峰值、均值、均方值和方差的计算。 (3)信号频谱分析,频率、周期的估计,图形显示幅值谱、相位谱、实 频谱、虚频谱和功率谱的曲线。(This experiment requires the design principle and implementation of audio signal spectrum analyzer based on sound card and MATLAB. Its functions include: (1) input of audio signal, input from sound card, input from WAV file, and from standard signal generator. Input. (2) signal waveform analysis, including amplitude, frequency, period, phase estimation, and statistics. Calculation of peak value, mean value, mean square value and variance. (3) signal frequency spectrum analysis, frequency, cycle estimation, graphic display amplitude spectrum, phase spectrum, real The curves of spectrum, virtual spectrum and power spectrum.)

文件列表:

analysis_v1.fig, 147353 , 2017-12-20
analysis_v1.m, 33959 , 2017-12-21
calsample.m, 230 , 2017-10-13

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