Description: 語音信號是基於時間軸上的一維數位信號，在這裏主要是對語音信號進行頻域上的分析。在信號分析中，頻域往往包含了更多的資訊。對於頻域來說，大概有8種波形可以讓我們分析：矩形方波，鋸齒波，梯形波，臨界阻尼指數脈衝波形，三角波，餘旋波，余旋平方波，高斯波。對於各種波形，我們都可以用一種方法來分析，就是傅立葉變換：將時域的波形轉化到頻域來分析。-Voice signal is based on the timeline of one-dimensional digital signal, where mainly the speech signal in frequency domain analysis. In signal analysis, frequency domain often contains more information. For the frequency domain for about 8 allows us to analyze waveforms: rectangular square wave, sawtooth, trapezoidal wave, the critical damping index pulse, triangle wave, I spin wave, I spin square wave, Gaussian. For all waveforms, we can analyze in a way that is Fourier transform: the transformation of time domain waveform into the frequency domain to analyze Platform: |
Size: 133120 |
Author:林志強 |
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Description: MATLAB演示信号与系统课程里的相关性质。包括，sz平面映射极零图的响应及其对应关系的动画显示，二阶系统的阶跃响应，傅里叶变换性质，矩形波、锯齿波的傅里叶级数分解的动画演示-MATLAB demo signals and systems related to the nature of the curriculum. Including, sz mapping plane pole-zero diagram of response and correspondence between animation shows the step response of second-order system, Fourier transform nature, rectangular wave, sawtooth Fourier series decomposition of Animation Platform: |
Size: 333824 |
Author:陈世荣 |
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Description: 通过傅里叶变换提高图像的分辨率，使图像边缘更加平滑，明显减弱锯齿形状。(The resolution of the image is improved by Fourier transform, and the edge of the image is smoother and the sawtooth is obviously weakened.) Platform: |
Size: 1024 |
Author:战衣飘飘 |
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