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时间序列的时频特性分析研究时间序列的傅里叶变换及逆变换，快速梅林变换及逆变换，短时离散傅里叶变换，得到瞬时频率。
研究时间序列的Born–Jondan时频分布图，Butterworth时频分布图，Choi–Williams时频分布图，得到瞬时频率。
-Time series analysis of time-frequency characteristics of time series of Fourier transform and inverse transform, the fa
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数字信号变换处理技术实现 研究数字信号离散傅里叶变换数字信号离散余弦变换数字信号离散希尔伯特变换数字信号Chirp Z变换。
-Digital signal processing technology transform Discrete Fourier transform of digital signal digital signal discrete cosine transform discrete Hilbert transform digital signal digital s
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采用傅里叶变换，频域中进行行为识别的方法，具体请参考MACH3D的那篇论文-The Fourier transform, frequency domain behavior recognition method, specific reference MACH3D of that paper
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分数阶傅里叶变换计算方面,基于小波变换的数字水印算法matlab代码，小波包分析提取振动信号中的特征频率。- Fractional Fourier transform computing, Based on wavelet transform digital watermarking algorithm matlab code, Wavelet packet analysis to extract vibration signal characteristic frequency.
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傅立叶反变换的MATLAB实现程序,是M文件,方便使用,-Fourier inverse transform MATLAB procedures, is M file, easy to use,
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用MATLAB编写的遗传算法路径规划，分数阶傅里叶变换计算方面,通过虚拟阵元进行DOA估计。- Genetic algorithms using MATLAB path planning, Fractional Fourier transform computing, Conducted through virtual array DOA estimation.
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Fractional Fourier transform computing, The Chinese have a comment, understand it, Complete codec LDPC code.
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