Neural_network_pattern_recognition_and_realization

自适应滤波lms算法，采用ask调制，三条多经信道，信噪比可调。(LMS adaptive filtering algorithm, using ask modulation, by more than three channels, signal to noise ratio adjustable.)

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)

自己用支持向量机编的一个小程序，很好的实现了分类(Their series with support vector machine is a small program achieved very good classification)

Sort back sorted data to initial state

em 算法下加入alpha噪声的通信系统的性能检测程序(em algorithm alpha noise was added performance of the communication system testing procedures)

说明：  可以图形化实现对任意系统参数的优化，系统既可以是线性系统，又可以是非线性系统(The optimization of any system parameters can be realized graphically. The system can be either linear or nonlinear)

采用时频分布参数来描述语音特征，对基于正弦模型的多种时频参数进行了比较(Time-frequency distribution parameters used to describe the voice characteristics of the multiple sinusoidal model-based time-frequency parameters are compared)

说明：  在matlab中剪切出自己感兴趣的区域，鼠标点出两点，即可裁剪出所需矩形。(Cut in matlab in their own areas of interest, the mouse to point out two things, you can cut the required rectangle.)

用charal函数实现对加噪降晰图像的反降晰.charal函数实现约束最小二乘法的算法，其中alpha（1/lamda）由Charalambous确定.反降晰的图像相对于降晰加噪图像清晰度有所提升，但是反降晰的图像存在较为明显的寄生波纹。(Deblurring the blurred image with noise by using Charal function. Charal function implements constrained least squares algorithm, where alpha (1/lamda) is determined by Charalambous. Compared to the blurred image, the sharpness of the image deblurred has improved, but obvious parasitic ripples arise.)

股票数据爬虫，matlab版本，与网上同一类型的区别在于，能够直接运行，有一定的借鉴意义。(Stock data crawler, matlab version, with the same type of difference between online, can run directly, have certain reference significance.)