Description: 对两幅图像作FFT变换，然后交换两幅图像的幅度谱和相位谱，然后通过逆fft变换还原图像，得到原图和变换后图像的对比，得出图像的幅度谱和相位谱哪个更重要的结果，注意图形是8位灰度图，尺寸大小必须一样-Exchange of the two images of the amplitude spectrum and phase spectrum and inverse FFT transform to restore Platform: |
Size: 52224 |
Author:陈述 |
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Description: 通过Matlab求出连续时间信号的傅立叶变换及编程绘制各种连续时间信号系统的时域波行，幅度谱以及相位谱-Fourier transform of continuous-time signal obtained through Matlab and programming time domain wave line to draw a variety of continuous-time signal system , the amplitude spectrum and phase spectrum
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Size: 12288 |
Author:杨菲 |
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Description: 求一维序列x(n)的离散Fourier谱分析，s(0:m)离散功率谱，c(0:m)振幅谱，cta(0:m)位相谱，其中m=[n/2.]。-The discrete Fourier spectral analysis of the request of one-dimensional sequence x (n), s (0: m) discrete power spectrum, c (0: m) amplitude spectrum, cta (0: m) phase spectrum, where m = [n/2. ]. Platform: |
Size: 1024 |
Author:huhaibo |
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Description: 对信号进行FFT变换，再将特定的频率段滤波滤除，最后描绘出滤波前后的振幅谱以及滤波后的时间域信号。-FFT transformation on the signal, then the specific frequency segment filter to filter out, and finally depict a time domain signal after the amplitude spectrum before and after filtering and filtering. Platform: |
Size: 7168 |
Author:pingzi |
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Description: 产生右图所示亮块图像 f1(x,y)（128×128大小，暗处=0，亮处=255），对其进行FFT，同屏显示原图f1和FFT(f1)的幅度谱图，若令f2(x,y)=（-1）x+y f1(x,y)，重复以上过程。以及旋转45度后进行变换-Generating shown bright block image F1 (x, y) (128128 size dark = 0, light at = 255), the FFT, the same screen display Original f1 and FFT (f1) of the amplitude spectrum FIG Let f2 (x, y) = (-1) x+y f1 (x, y), the above process is repeated. And rotated by 45 degrees to transform Platform: |
Size: 250880 |
Author:LyndonZhang |
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Description: 求出并画出周期为8的周期信号的离散幅度谱和相位谱。-Find out and draw the cycle of 8 of discrete periodic signal amplitude spectrum and phase spectrum
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Size: 2048 |
Author:weimindan |
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Description: 求出并画出周期为12，在区间【-6,6】内的周期信号的幅度谱和相位谱。-Find out and draw the period is 12 cycle signal amplitude spectrum and phase spectrum
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Size: 2048 |
Author:weimindan |
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Description: 基于fft的数字水印，分别对RBG三个通道重复嵌水印，每个通道分别对fft变换域中幅度谱以圆方式，每个圆上对称的四个点重复嵌1bit水印，然后以r为步进，选更大的圆嵌入接下去的水印信息，该方法有比较好的鲁棒性-Fft-based digital watermarking were embedded watermark repeated RBG three channels, each channel separately the fft transform domain amplitude spectrum round, four points for each round symmetrical repeat embedded 1bit watermark, then r steps into the election next larger circle embedded watermark information, the method has better robustness Platform: |
Size: 5401600 |
Author:HQR |
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Description: 傅里叶变换，中心化，然后取幅值，利用log函数增强再输出-Fourier transform, the center, and then take the amplitude, enhanced and then output the log function Platform: |
Size: 16384 |
Author:李倩影 |
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Description: 在matlab下利用simulink搭建模块，对典型信号如正弦波、方波、三角波、锯齿波、白噪声以及叠加波形的时域信号进行频谱（幅值谱）特性分析。-Module in matlab simulink structures, such as sine, square, triangle wave, sawtooth wave, white noise, as well as the time-domain signal waveforms superimposed spectrum (amplitude spectrum) characteristics of a typical signal. Platform: |
Size: 19456 |
Author:shoucql |
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Description: 取音频左声道，并画出音频幅值频谱及频率能量图-Take the audio left channel, and draw the the audio amplitude spectrum and frequency energy diagram Platform: |
Size: 1024 |
Author:hjq |
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Description: 本程序是用于信号频谱分析的实验程序。
主要功能是进行信号的幅值谱计算；同时可完成在选定范围内谱峰的精确频率、幅值和相位计算（计算结果为cos相位）。-This procedure is used for signal spectrum analysis of experimental procedures. The main function is to calculate the amplitude spectrum of the signal precise frequency, amplitude and phase of the spectral peaks in the same time can be completed within a selected range (calculated as cos phase). Platform: |
Size: 1024 |
Author:江铖 |
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Description: 描述心电信号的的幅频特性以及心电信号的功率谱特性。-Description of the ecg signal amplitude frequency characteristics and ecg signal power spectrum characteristics.
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Size: 1024 |
Author:若鸿 |
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Description: 图像处理中的双普重构，通过此程序欲行结果将看出在图像重构中幅度谱与相位谱谁的贡献更大-Dual Pu reconstruction in image processing through this program, like the line will be seen in the image reconstruction amplitude spectrum and phase spectrum who contribute more Platform: |
Size: 921600 |
Author:july |
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Search - amplitude spectrum