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ISAR的短时傅立叶变换程序，用于ISAR成像时的频率估计-ISAR the short-time Fourier transform procedures, ISAR imaging for the estimated frequency
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对信号进行自适应核二次型时频分布变换，显示信号的时频特征-Adaptive signals nuclear quadratic transform time-frequency distribution, indicating the time-frequency characteristics
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基于分数阶傅里叶变换的线性调频信号二维波达方向估计-Fractional Fourier transform based on the linear frequency modulation signal is estimated that 2-D DOA
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This paper proposes a fault location method employing wavelet fuzzy neural network to use post-fault transient and steady-state measurements.
When single line to ground fault (SLG) occurs in the distribution lines of an industrial system, the trans
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再短时傅里叶变换中设置时间分辨率，此时信号的短时傅里叶变换在时间轴上完全局部化而没有频率分辨率-Short-time Fourier transform and then set the time resolution, this time the signal short-time Fourier transform in the timeline is completely localized but not the frequency resolution of
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有限冲激响应滤波器的频域实现方法。可以通过快速傅里叶变换降低复杂度。-Finite Impulse Response Filter frequency domain method. Can reduce the complexity of the fast Fourier transform.
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基于VB操作环境对音频信号进行幅频相频以及傅里叶变换分析-VB operating environment of the audio signal amplitude-frequency phase-frequency Fourier transform-based analysis
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二维小波变换 分离图像高频信号 增强裂缝信息-Dimensional wavelet transform high-frequency signal enhancement cracks separation image information
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Hilbert-Huang变换是一种处理非线性，非平稳数据的方法，该方法由EEMD和Hilbert谱分析构成。-Hilbert-Huang Transform(HHT) is a novel general time frequency method for analysing nonlinear and non-stationary time series, which was developed by Norden E. Huang,1998,and made up of two parts
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地震细聊解释 时频分析 频率域希尔伯特变换-Frequency domain Hilbert transform
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地震数据时频分析，利用s变换 实现频谱属性研究。-Time-frequency analysis of seismic data using spectral properties of s transform research implementation.
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运用EMd算法实现了信号的处理，并且对信号进行傅里叶变化获得其频域特征，冲采样后获得特征参数建立神经网络与实验进行识别-
EMd use signal processing algorithm, and the Fourier transform of the signal in the frequency domain to obtain its characteristic red after sampling to obtain the characteristic parameter
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运用数字信号学基本原理实现语音信号的处理，在matlab7.0环境下综合运用信号提取，幅频变换以及傅里叶变换、滤波等技术来进行语音信号处理。-Learn the basic principles of the use of digital signal processing to achieve the speech signal in the integrated use of signal extraction matlab7.0 environment, amplitude-frequen
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希尔伯特黄变换应用于转子震动，包括时频图，希尔伯特变换图，边际谱。-Hilbert-Huang transform is applied to the rotor vibration, including the time-frequency diagram, Hilbert transformation graphs, marginal spectrum.
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对信号进行离散傅里叶变换，将信号从时域变换到频域进行分析-Discrete Fourier transform of the signal, the signal the time domain to the frequency domain analysis
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对时间序列做傅里叶变换得到频谱区。分析频率-Time series do Fourier transform spectral regions. Frequency Analysis
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基于连续小波变化的心音信号时频分析，目的是将连续小波变换应用于心音信号的分析中。-Heart sound signal based on continuous wavelet transform frequency analysis, the purpose of the continuous wavelet transform applied to the analysis of heart sound signals.
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有关时频曲线的画法 是利用小波 对于函数可以自己修改-Time frequency diagram of the painting, the main use of wavelet transform can modify their own
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经验模态分解（Empirical Mode Decomposition，简称EMD))方法被认为是2000年来以傅立叶变换为基础的线性和稳态频谱分析的一个重大突破?，该方法是依据数据自身的时间尺度特征来进行信号分解，无须预先设定任何基函数。
该方法的关键是经验模式分解，它能使复杂信号分解为有限个本征模函数（Intrinsic Mode Function，简称IMF），所分解出来的各IMF分量包含了原信号的不同时间尺度的局部特征信号。经验模态分解法能使非平稳数据进行平稳化
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将地震数据进行频率波数域变换，可以进行分析与去燥等处理。(Transform seismic data into frequency wavenumber domain)
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