ThreeWJ

Quadrature amplitude modulation (QAM) is a modulation scheme in which two sinusoidal carriers, one exactly 90 degrees out of phase with respect to the other, are used to transmit data over a given physical channel. One signal is called the I signal, and the other is called the Q signal. Because the orthogonal carriers occupy the same frequency band and differ by a 90 degree phase shift, each can be modulated independently, transmitted over the same frequency band, and separated by demodulation at the receiver. For a given available bandwidth, QAM enables data transmission at twice the rate of standard pulse amplitude modulation (PAM) without any degradation in the bit error ratio (BER).

一个高效的matlab代码，用来拟合图像中的圆(An efficient matlab code used to fit the image of a round)

偏微分方程的matlab解法，详细讲解了使用该工具求解偏微分方程的方法和途径，是一本很有价值的参考书(Solution of partial differential equations matlab, detailed account of the use of the tools for solving partial differential equations of the ways and means, are a valuable reference book)

对心电信号实现去噪处理，对心电信号进行前期处理的必要步骤。(To achieve de-noising of ECG signal processing, pre-treatment on the ECG of the necessary steps.)

说明：  matlab经典教材，详细讲述了matlab6.0的功能与使用方法(matlab classic materials, matlab6.0 described in detail the function and use)

Template conferece

Mie散射相函数MATLAB源程序，求mie散射系数an、bn及散射角等(MATLAB Functions for Mie Scattering and Absorption)

卷积码的维特比译码仿真，基于MATLAB的一种源代码，很实用的(Convolutional code Viterbi Decoder Simulation)

这是一个医学图像处理和传输的标准。在matlab中提供了读写DICOM文件数据的支持 (This is a medical image processing and transmission standards. Provided in the matlab file data read and write DICOM support)

基于隐藏密钥可以，将秘密信息msg嵌入到二值载体图像cover，算法简单，主要适合于将密文隐藏在BMP格式的文档里。(Key can be based on hidden, secret information will be embedded into the binary vector msg image cover, simple algorithm, mainly for the cipher text hidden in the BMP format documentation.)