qpsk_ber_no_noise.m

说明：  BPSK,Pi/4DQPSK,16QAM调制解调的实现：实现具体的调制解调功能(BPSK, Pi/4DQPSK, 16QAM modem realization: the realization of specific functions of modulation and demodulation)

Tamir模型的源代码,主要研究在树林信号传播时的衰减模型。(The Tamir model source code, mainly in the woods signal propagation attenuation model.)

L_D算法和Burg算法解Toeplitz矩阵并进行参数估计，并对信号的功率谱进行比较(Levinson algorithm and Burg algorithm )

this program consists of mosaicing image mannually by allowing the user enter the desired points

免疫遗传算法解决TSP问题的源程序，属于本人写文章测试benchmark problem用的程序。(Immune genetic algorithm to solve TSP problem source, which I write the test procedures used benchmark problem.)

OFDM multipath fading channel model jakes

calculation of short time energy and zero crossing rate by using mat lab

Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document. A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.

实现基本的ofdm通信系统，包括ifft，加窗等等(Ofdm communication system to achieve the basic)

Shannon编码程序。解决信号矢量问题。(Shannon coding procedures. Solve the problem of signal vector)