math-model

中文的OFDM原理，讲的很好，很仔细，对初学者有很好的帮助(Chinese OFDM principle, speak very good, very carefully, and have very good help for beginners)

802.11a协议物理层的仿真源代码，具有较高的正确性(802.11a physical layer protocol source code for the simulation with high accuracy)

计算chebyshev多项式-计算chebyshev多项式计算chebyshev多项式(Evaluates chebyshev polynomials with vector arguments for vector arguments x)

图像处理 计算基于hausdorff距离和遗传算法的图像匹配（只有旋转和平移）(Hausdorff distance calculation is based on image processing and genetic algorithms image matching (only rotation and translation))

这是2009年huang在EMD基础上改进的算法EEMD的matlab代码！(This is the huang in 2009 based on the improved EMD algorithm EEMD matlab code!)

说明：  灰度共生矩阵MATLAB实现 联合概率矩阵法是对图像的所有像素进行统计调查，以便描述其灰度分布的一种方法。(Gray symbiotic matrix MATLAB joint probability matrix of all the pixel image survey was conducted to describe the distribution of a gray-scale approach. )

sep and leach routing protocols in wireless sensor networks is a typical routing protocol

％直接型到并联型的转换 ％ ％[C,B,A]=dir2par(b,a) ％C为当b的长度大于a时的多项式部分 ％B为包含各bk的K乘2维实系数矩阵 ％A为包含各ak的K乘3维实系数矩阵 ％b为直接型分子多项式系数 ％a为直接型分母多项式系数 ％ ( Directly to the shunt-type conversion [C, B, A] = dir2par (b, a) C for when the b is greater than the length of a polynomial when part of B to include the bk of the K x 2 Victoria real coefficient matrix A contains the ak for the K x 3-dimensional real coefficient matrix b-type elements for direct polynomial coefficients a direct-type denominator polynomial coefficients)

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 )

nginx源码分析，全面易懂。正在研究nginx的朋友可以看看。(nginx source code analysis, comprehensive and easy to understand.Studying nginx friends can see.)