Numerical-Mathematic

说明：  M文件编写的BP神经网络例子，有学习和识别的功能(M document prepared by the example of BP neural network, learn and identify the function)

Finally it is observed that by using this filter, the common mode noise level of 2MHz resonant converter is suppressed according to CISPR 22 standard limits

MUSIC和ESPRIT算法是最经典的算法，本文里面包含了MUSIC和ESPIT的基本程序。(MUSIC and ESPRIT algorithm is the most classical algorithm, in this paper, which includes the basic procedure of MUSIC and ESPIT.)

利用STDM方法嵌入水印信息，可设置量化步长，选择各种经典的攻击方式，控制攻击强弱，返回误码率和峰值信噪比(Stdm method using embedded watermark information, to set the quantization step size, choose a variety of classic attacks, controlling the strength of the attack and returned to the bit error rate and peak signal to noise ratio)

energy totale in cognitive radio network

pll锁相环程序——matlab仿真，使用复数表示的正弦信号(Phase-locked loop matlab simulation program)

说明：  基于高阶累积量的ICA独立分量分析，用于信号的分离(Cumulant-based ICA Independent Component Analysis for Signal Separation)

实现维纳滤波器,MATLAB中可直接运行,有结果图.(achieve Wiener filter, MATLAB can run, the outcome of the map.)

Color Image Enhancement Techniques: A Critical Review Abstract Image enhancement is one of the key issues in high quality pictures such as digital camera and HDTV. Since Image clarity is very easily affected by lighting, weather, or equipment that has been used to capture the image. These conditions lead to image may suffer from loss of information. As a result, many techniques have developed known as image Enhancement techniques to recover the information in an image. This paper presents a literature review on some of the image Enhancement techniques for color image enhancement like, Contrast Stretching, Histogram Equalization and its improvement versions, Homomorphic Filtering, Retinex, and Wavelet Multiscale Transform. Comparison of all the techniques concludes the better approach for its future research

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