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Description: 可以进行 CHIRP-Z 的FFT变换(CZT)-can CHIRP-Z FFT transform (CZT)
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Size: 1443 |
Author: kouwei |
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Description: 信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、FIR和Lattice结构；IIR滤波器设计包括模拟和数字低通、高通、带通与带阻滤波器设计，以及基于冲激响应不变法和双线性Z变换法的IlR滤波器设计等；FIR滤波器设计包括基于窗函数、频率抽样法和切比雪大逼近法的FIR滤波器设计；平稳信号分析包括经典功率谱估计、基于参数模型的功率谱估计和基于非参数模型的功率谱估计；非平稳信号分析包括STFT变换、Gabor展开、Wigner-Ville分布与Choi-Williams分布；非高斯信号分析包括基于非参数法的双谱估计、基于参数模型的双谱估计，以及双谱估计的应用；信号处理的GUI实现包括滤波器设计与分析的FDATool工具和滤波器设计与信号分析的SPTool工具。-signals and systems based on knowledge, including continuous signal with the model, discrete signal and model; Common signals include transform Z transform, chirp Z-transform, FFT transform. DCT and Hilbert transform; Discrete system architecture including IIR, FIR and Lattice structure; IIR filter design, including analog and digital low-pass, high-pass, band-pass and band stop filter design, Based on the impulse response of the same law and bilinear Z transform the IlR filter design; FIR filter design including on the basis of the window function, frequency sampling and snow all over the big approximation of FIR filter design; stationary signal analysis include classical power spectrum estimation, Based on the model parameters of the power spectrum estimation and non - parametric model b
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Size: 101182 |
Author: james |
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Description: 可以进行 CHIRP-Z 的FFT变换(CZT)-can CHIRP-Z FFT transform (CZT)
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Size: 1024 |
Author: kouwei |
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Description: 信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、FIR和Lattice结构；IIR滤波器设计包括模拟和数字低通、高通、带通与带阻滤波器设计，以及基于冲激响应不变法和双线性Z变换法的IlR滤波器设计等；FIR滤波器设计包括基于窗函数、频率抽样法和切比雪大逼近法的FIR滤波器设计；平稳信号分析包括经典功率谱估计、基于参数模型的功率谱估计和基于非参数模型的功率谱估计；非平稳信号分析包括STFT变换、Gabor展开、Wigner-Ville分布与Choi-Williams分布；非高斯信号分析包括基于非参数法的双谱估计、基于参数模型的双谱估计，以及双谱估计的应用；信号处理的GUI实现包括滤波器设计与分析的FDATool工具和滤波器设计与信号分析的SPTool工具。-signals and systems based on knowledge, including continuous signal with the model, discrete signal and model; Common signals include transform Z transform, chirp Z-transform, FFT transform. DCT and Hilbert transform; Discrete system architecture including IIR, FIR and Lattice structure; IIR filter design, including analog and digital low-pass, high-pass, band-pass and band stop filter design, Based on the impulse response of the same law and bilinear Z transform the IlR filter design; FIR filter design including on the basis of the window function, frequency sampling and snow all over the big approximation of FIR filter design; stationary signal analysis include classical power spectrum estimation, Based on the model parameters of the power spectrum estimation and non- parametric model b
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Size: 101376 |
Author: james |
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Description: 信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、fir和Lattice结构；IIR滤波器设计包括模拟和数字低通、高-Basic knowledge of signals and systems, including continuous signal with the model, discrete signals and model common signal, including Z Transform Transform, Chirp Z Transform, FFT transform, DCT transform and Hilbert transform, etc. discrete system architecture including IIR, fir and Lattice structure IIR filter design, including analog and digital low-pass, high-
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Size: 3072 |
Author: 东 |
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Description: C实现Chirp-Z变化，采用Bluestein快速算法，压缩包内还附有FFT.h和Complex.h,很有应用价值-C implementation Chirp-Z changes, the use of fast algorithm Bluestein, compressed package also included FFT.h and Complex.h, great value
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Size: 3072 |
Author: |
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Description: The frequency domain plays an important role in image
processing to smooth, enhance, and detect edges of images. Although
image data typically does not include imaginary values, the fast Fourier
transform (FFT) has been used for obtaining spectra. In this paper,
the fast Hartley transform (FHT) is used to transform two-dimensional
image data. Because the Hartley transform is real valued, it does
not require complex operations. Both spectra and autocorrelations of
two-dimensional ultrasound images of normal and abnormal livers were
computed.
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Size: 4096 |
Author: archit |
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Description: 第2章 信号变换 67
2.1 Z变换及MATLAB实现 67
2.1.1 Z变换的定义 68
2.1.2 Z变换的收敛域 68
2.1.3 Z逆变换 70
2.1.4 Z变换的性质 72
2.1.5 Z变换的工程应用 74
2.2 Chirp Z变换及MATLAB实现 77
2.2.1 Chirp Z变换的定义 77
2.2.2 Chirp Z变换的计算方法 79
2.2.3 Chirp Z变换的MATLAB实现 80
2.3 离散傅里叶变换及MATLAB实现 82
2.3.1 离散傅里叶变换定义 82
2.3.2 离散傅里叶变换的MATLAB实现 84
2.3.3 离散傅里叶变换性质 86
2.3.4 离散傅里叶变换的FFT算法 95
2.3.5 离散傅里叶变换FFT算法的应用 98
2.4 DCT变换及MATLAB实现 99
2.4.1 DCT变换的定义 100
2.4.2 DCT变换的MATLAB实现 101
2.5 Hilbert变换及MATLAB实现 103
2.5.1 Hilbert变换的定义 103
2.5.2 Hilbert变换的MATLAB实现 104
2.5.3 Hilbert变换的性质 105-Chapter 2, the signal transform 67
2.1 Z transform, and MATLAB to achieve 67
2.1.1 Z transform definition 68
2.1.2 Z transform domain of convergence 68
2.1.3 Z inverse transform 70
2.1.4 Z transform the nature of the 72
2.1.5 Z 74 Transform Application
2.2 Chirp Z transform, and MATLAB to achieve 77
2.2.1 Chirp Z transform definition 77
2.2.2 Chirp Z transform method 79
2.2.3 Chirp Z Transform MATLAB to achieve 80
2.3 Discrete Fourier Transform and MATLAB to achieve 82
82 2.3.1 Definition of Discrete Fourier Transform
2.3.2 MATLAB Implementation of Discrete Fourier Transform 84
2.3.3 Discrete Fourier transform 86
2.3.4 Discrete Fourier Transform FFT algorithm 95
2.3.5 Discrete Fourier Transform FFT algorithms in the 98
2.4 DCT transform, and MATLAB to achieve 99
2.4.1 DCT transform definition 100
2.4.2 DCT Transform MATLAB Implementation 101
2.5 Hilbert Transform and MATLAB Implementation 103
2.5.1 Hilbert transform definition 103
2.5.2 Hilbert Transform MATLAB Im
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Size: 7168 |
Author: Lily |
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Description: CZT变换进行信号频谱分析，解决了FFT法频域分辨不高的问题，源码开发，特别适用-Chirp Z Transform
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Size: 1024 |
Author: 李友鹏 |
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Description: 利用快速卷积实现chirp-z计算，针对有限长序列和无限长序列。-chirp-z compute using fast fft-based convolution
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Size: 1024 |
Author: 陶龙远 |
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Description: 基于频谱细化的线性调频信号的参数估计。首先对中频信号延时相乘然后对产生的序列做FFT，初步算出LFM信号的调频斜率，然后用CHIRP-Z变换精确估计。-Estimated based on the parameters of the linear FM signal spectrum refinement. First of delay multiplied by the IF signal and then do the FFT on the resulting sequence, initially calculated the slope of the LFM signal FM accurate estimate, and then use the CHIRP-Z transform.
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Size: 70656 |
Author: 孙科 |
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Description: FFT与chirp-z变换的对比,简单分析了chirp-z变换的原理，及程序实现，是一份word文档，里面包含源程序-FFT comparision with Chirp-Z
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Size: 285696 |
Author: 袁艳丽 |
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Description: 该代码能够实现改进的线性调频Z变换的功能，取代FFT变换能够起到细化频谱的作用。-The code can achieve improved chirp Z transform function, replace the FFT spectrum can play a role in refinement.
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Size: 1024 |
Author: 韩洁 |
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Description: 该文章讲述了FFT变换的局限性，提出了用chirp-z变换改进的方法，并比较了其效果。-This article describes the limitations of FFT transform, a method using chirp-z transform improved, and compared its effects.
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Size: 156672 |
Author: zhouxuejun |
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Description: 复调制ZoomFFT是频谱细化技术的其中一种，从分析精度、计算效率、分辨率、灵活性等方面来看，是最有效的一种。-A common method of complex modulation ZoomFFT method, Chirp-Z transform, Yip-ZOOM transform based on, but the analysis accuracy, computational efficiency, resolution, spirit Active perspective, Zoom-FFT method based on the polyphonic system is a kind of effective method.
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Size: 11264 |
Author: Ren Zonghao |
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Description: chirp z algorithm fft matlab simulink
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Size: 16384 |
Author: loster81 |
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