AFSA_code

The simplest channel which we use in ideal case is AWGN channel and everyone knows that before starting siluation on the other part of the system we must simulate the AWGN channel.this is AWGN channel with a BPSK signal going through it and finally we detect the signal and plot BER vs SNR to compair with the theory.

本代码，用MATLAB编写。把灰度图转化为伪彩色图。(The code, prepared by using MATLAB. The grayscale into a pseudo-color map.)

Matleb的学习课件，适合初学者学习使用。(Matleb learning courseware, suitable for beginners learning to use.)

关于PSA制氮机的程序，利用分子筛，AB按顺序吸附排空的方式，制取高纯度的氮气。(PSA Nitrogen Generator program, the use of molecular sieve adsorption emptying, AB order, preparation of high purity nitrogen.)

svm 分类小例子，准确率较高。有可能是样本较少或者是样本数据取得太好的缘故。(svm classification)

感知器算法的基本思想是，对初始的或迭代中的增广权矢量 ，用已知的训练模式检验它的合理性，当不合理时，对其进行校正，校正方法实际上是最优化技术中的梯度下降法，上传的是用matlab解决感知器问题。(The Perceptron Algorithm The basic idea augmented weight vector of the initial iteration, the known training mode to test it reasonable, unreasonable, its correction, the correction method is actually the most optimization techniques the gradient descent method, upload matlab to solve perception problems.)

基本的调制解调程序集matlab在simulink下的仿真(Modem basic assembly of matlab simulation in simulink)

说明：  现代信号处理中高阶统计量——计算三阶累积量的程序(Modern signal processing in higher-order statistics- calculate third-order cumulants of the process)

JPEG 2000是基于小波变换的图像压缩标准，由Joint Photographic Experts Group组织创建和维护。JPEG 2000通常被认为是未来取代JPEG（基于离散余弦变换）的下一代图像压缩标准。JPEG 2000文件的副档名通常为.jp2，MIME类型是image/jp2。 JPEG 2000的压缩比更高，而且不会产生原先的基于离散余弦变换的JPEG标准产生的块状模糊瑕疵。JPEG 2000同时支持有损数据压缩和无损数据压缩。另外，JPEG 2000也支持更复杂的渐进式显示和下载。 JPEG 2000是国际标准化组织（ISO）发布的标准，文档代码为ISO/IEC 15444-1：2000。虽然JPEG 2000在技术上有一定的优势，但是到目前为止（2006年），互联网上采用JPEG 2000技术制作的图像文件数量仍然很少，并且大多数的浏览器仍然不支持JPEG 2000图像文件的显示。但是，由于JPEG 2000在无损压缩下仍然能有比较好的压缩率，所以JPEG 2000在图像品质要求比较高的医学图像的分析和处理中已经有了一定程度的广泛应用。 (JPEG 2000 is based on wavelet transform the image compression standard, by Joint Photographic Experts Group organization to create and maintain. JPEG 2000 is often thought to be the future replace JPEG (based on the discrete cosine transform) is the next generation of image compression standard. The file JPEG 2000 vice file name is usually. Jp2, MIME type is image/jp2. JPEG 2000 compression ratio are higher, but won t produce the original based on discrete cosine transform JPEG standard of produce massive fuzzy flaws. JPEG 2000 also detrimental to support data compression and nondestructive data compression. In addition, JPEG 2000 also support more complex gradual display and download. JPEG 2000 is international organization for standardization (ISO) issued the standard, the document code for ISO/IEC 15444-1:2000. Although JPEG 2000 on the technology has certain advantages, but so far (2006), the Internet using JPEG 2000 technical production image file number still few, and most )

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