assignment1

ISODATA聚类算法，内附详细注解，使用了Iris数据集。ISODATA是一种常用的聚类算法之一。(ISODATA clustering algorithm, containing detailed notes, using the Iris data set. ISODATA clustering algorithm is a common one.)

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)

calculation of one and two dimensional FDTD. 1D and 2D FDTD

说明：  matlab的基础入门，对于MATLAB陌生的朋友是较好的教材(matlab based entry, for MATLAB is a good friend of unfamiliar material)

this programme is for baselinbe removal of noisy ecg data.Low frequency noise is the base line so by using any such technique u can remove it.

语音信号处理中的LPCC的提取方法,包括PDF的文章介绍,适合初学者(LPCC speech signal processing in the extraction methods, including PDF article introduction, suitable for beginners)

This text is an introduction to Simulink ® , a companion application to MATLAB ® . It is written for students at the undergraduate and graduate programs, as well as for the working professional.

说明：  低通滤波器 基于MATLAB的低通滤波器，Z变换实现(low-pass filter based on MATLAB low-pass filter, Z transform)

matlab中tic与toc函数联合进度条使用例子(tic toc function matlab in combination with the use of examples progress bar)

模拟巴特沃斯滤波器，并可观察期幅频相频特性曲线(Analog Butterworth filter, and can observe the phase frequency of amplitude-frequency characteristic curve)