featureextraction

QAM 调制完整代码，MATLAB实现，通俗易懂，适合初学者学习参考。(QAM Modem Demo)

提取图像sift特征，并且showkey函数在图像上直观的显示出来(Sift extracted image features, and showkey function in the image displayed on the intuitive)

说明：  在matlab中实现信号的模数以及数模转换，并包含简单的界面(achieve the Matlab Signal Module and hundreds of analog conversion, and includes a simple interface)

关于matlab基础操作、矩阵运算、程序设计、绘图等的学习资料(Learning materials of the underlying operating on matlab, matrix operations, program design, graphics, etc.)

This matlab code describes Perturbation and observation algorithm for calculation of maximum power point of a PV module. It is a basic example.

this code is written to solve non linear equation using muller method.

关于粒子滤波算法的介绍，并附有matlab程序说明，希望大家喜欢.(鹿 脴脫脷脕 拢 脳 脫脗脣 虏 篓 脣茫 篓 渭脛 陆 茅脡脺 拢卢虏垄赂陆 脫脨matlab 鲁 脤脨貌脣渭脙 梅 拢 卢 脧 拢 脥没)

采用信号包络和差分方式进行信号模式识别，通过变换产生时域解析信号SKH ，即信号的复包络，得到零中心归一化瞬时绝对值的标准偏差。 (Differential use of signal envelope and the way the signal pattern recognition, transformation generated by time domain analytic signal SKH, the signal complex envelope, zero-center normalized standard deviation of the instantaneous absolute value.)

该文件是介绍卡尔曼滤波算法的，整个设计过程和思路明晰。(The document was introduced Kalman filtering algorithm, the whole design process and clear thinking.)

说明：  该程序利用Matlab语言经行编程，实现都测井曲线进行不同尺度的小波变换。(The program uses the Matlab programming language through the line, different implementations log scale wavelet transform.)