chepaishibie

a homework in matlab

上传的是＜＜精通Matlab7程序＞＞中的全书所有的程序源代码，好不容易才找到的，(From the )

heed algorithms for the wireless sensor networks

灰度共生矩阵提取特征值，最近邻算法，进行纹理图像分类。creat_apprentissage用来训练样本，cooccurence是灰度共生矩阵提取特征值，knn是进行k最近邻算法，classif是纹理图像分类(coocurence matrix，using K nearest neighbor to classify textures images.)

有限单元法基础(第2版) 配套Matlab源代码(The basis of the finite element method (2))

模仿程序matlab代码，WCDMA系统(模仿程序programming matlap)

共振解调的过程如下：首先对采集到的信号进行傅里叶变换，然后利用传感器自身的谐振频率进行分析，对滤波后的信号进行包络，包络以后去除了高频部分，得到包络信号，再对改进的包络信号进一步进行低通滤波，最后对最终得到的信号进行傅立叶变换求其频谱图。共振解调的原理及其过程可以用图2 来进行表述。(The process of resonance demodulation is as follows: First, Fourier transform is performed on the collected signal, and then the resonance frequency of the sensor is used for analysis. The filtered signal is enveloped, and the high frequency part is removed after enveloping to obtain an envelope. The signal is further subjected to low-pass filtering on the improved envelope signal. Finally, the spectrum of the resulting signal is Fourier-transformed. The principle of resonant demodulation and its process can be expressed in Figure 2.)

斩波器的仿真，利于同学们对刘占波电路的了解。(Simulation of the chopper，which will help the students understanding of the INNER circuit.)

说明：  用于抑制高PAPR的典型算法仿真代码，包括选择性映射、部分传输序列和限幅(Typical algorithm simulation code for suppressing high PAPR, including selective mapping, partial transmission sequence and amplitude limiting)

VLFEAT,一个强大的SIFT库函数,适合MATLAB和VC应用(VLFEAT, a powerful SIFT library functions for MATLAB and VC application)