matlab

How the K-mean Cluster work Step 1. Begin with a decision the value of k = number of clusters Step 2. Put any initial partition that classifies the data into k clusters. You may assign the training samples randomly, or systematically as the following: Take the first k training sample as single-element clusters Assign each of the remaining (N-k) training sample to the cluster with the nearest centroid. After each assignment, recomputed the centroid of the gaining cluster. Step 3 . Take each sample in sequence and compute its distance from the centroid of each of the clusters. If a sample is not currently in the cluster with the closest centroid, switch this sample to that cluster and update the centroid of the cluster gaining the new sample and the cluster losing the sample. Step 4 . Repeat step 3 until convergence is achieved, that is until a pass through the training sample causes no new assignments. (How the K-mean Cluster workStep 1. Begin with a decision the value of k = number of clusters Step 2. Put any initial partition that classifies the data into k clusters. You may assign the training samples randomly, or systematically as the following: Take the first k training sample as single-element clusters Assign each of the remaining (Nk) training sample to the cluster with the nearest centroid. After each assignment, recomputed the centroid of the gaining cluster. Step 3. Take each sample in sequence and compute its distance from the centroid of each of the clusters. If a sample is not currently in the cluster with the closest centroid, switch this sample to that cluster and update the centroid of the cluster gaining the new sample and the cluster losing the sample. Step 4. Repeat step 3 until convergence is achieved, that is until a pass through the training sample causes no new assignments.)

用于进行prony模态识别，注意这里含有文件处理的过程，在时域中效果很好(prony estimation)

this is frequency hopping mfsk in matlab

OFDM正交多载波传输技术具有抗无线传输多径效应影响的能力，正逐步成为各种宽带无线数字传输系统(OFDM Orthogonal multi-carrier transmission technology with anti-multipath effects of wireless transmission capacity, is becoming a variety of broadband wireless digital transmission system)

one dimension problem kalman filter, using velocity information

读取信号进行时频分析，wigner时频图和fft频谱图(When reading the signal frequency analysis, time-frequency diagram and fft spectrum wigner)

产生噪声函数矩阵，噪声的大小可以根据参数改变。最后可以给图像加噪声(Noise function)

两个发射天线，两个接收天线的程序，包括编码，调制，解调等。(two transmit antennas two receive antennas system)

matlab implementation of peak findeing

基于matlab的一维条形码识别程序，条码为通用的EAN一13条码 (The bar code recognition program based on MATLAB)