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1. 利用自相关函数法和周期图法实现随机信号的功率谱估计。
2. 观察数据长度、自相关序列长度、信噪比、窗函数、平均次数等对谱估计的分辨率、稳定性、主瓣宽度和旁瓣效应的影响。
-1. The use of auto-correlation function method and cycle map Method random signal power spectrum estimation. 2. Observation data length, the length of autoco
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有用的几个动力学物理量。包括自相关函数(acorr.m),复杂度(complexity.m),最近邻点(fnn.m),局部非线性预测误差(nlpe.m,Shannon复杂度(Shannon.m),嵌入窗估计(window.m)-Several dynamic invariants and measures that may be useful. Included are algorithms for autocorrelation (acorr.m), complexity (complexit
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基于BLACKMAN窗的自相关周期图法功率谱估计,希望对大家有所帮助。-BLACKMAN-based window autocorrelation Periodogram power spectrum estimation, we want to help.
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详细说明:1. 利用自相关函数法和周期图法实现随机信号的功率谱估计。 2. 观察数据长度、自相关序列长度、信噪比、窗函数、平均次数等对谱估计的分辨率、稳定性、主瓣宽度和旁瓣效应的影响。 --1. The use of auto-correlation function method and cycle map Method random signal power spectrum estimation. 2. Observation data length, the length of auto
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对语音清音和浊音的区别,主要利用的是矩形窗,自相关处理-Voice unvoiced and voiced distinction, the main advantage is that the rectangular window, the autocorrelation processing
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本程序对语音信号加上不同长度的汉明窗,研究不同的窗长对语音信号的自相关函数的影响-Hamming window, the application on the speech signal plus different lengths study different window length of the autocorrelation function of the speech signal
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实现男女声判别,可自动弹出窗口进行判别。用到中心削波和自相关算法-Sound discrimination between men and women, it can automatically pop-up window to discriminate. Use the center clipping and autocorrelation algorithm
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共振峰检测的MATLAB实现,-Autocorrelation pitch detection method using MATLAB, using Hamming window treatment
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实验前自己用Cool Edit 音频编辑软件录制声音,并把它保存为.txt文件。
编程时间不同矩形窗长N=320,160,70的短时修正自相关
-Before the experiment they used Cool Edit audio editing software to record sound and save it as a. Txt file.
Programming time for different length N = short rectangular
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用自相关函数提取语音信号基频,提取音频文件的基频等高线(Use the autocorrelation function on segments of the signal (windowsize: 100ms) and compute the fundamental frequency. Use a max_time_lag of 100ms in the autocorrelation function and a window shift of 25ms. Create a fundame
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利用窗函数法设计FIR滤波器,绘制出滤波器的特性图。利用所设计的滤波器对多个频带叠加的正弦信号进行处理,对比滤波前后的信号时域和频域图,验证滤波器的效果。最后录制或下载一段语音信号,对其进行采样和加噪,然后用设计滤波器对加噪后信号进行滤波,绘制出信号的时域波形和频谱,分别计算均值、方差、自相关函数、功率谱,并对滤波前后的信号进行对比。(Using window function design FIR filter, draw the filter characteristic diagram.
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