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通信与系统仿真原理与无线应用第五章附录例5-11(Communications and System Simulation Principle and wireless applications Chapter V Appendix Example 5-11)

通信中的QPSK相位调制建摸，其中考虑了多径和高斯的影响(Communication QPSK modulation phase modeling, which takes into account the multi-path effects and Gaussian)

this program simulates 1D electromagnetic Maxwell equations "soft source", by using finite difference time domain method FDTD

空间谱估计及其应用，作者是 刘德树 罗京青 张剑云等。 (Spatial spectrum estimation and its application of Liu tree Luojing Qing ZHANG Jian-Yun.)

This package has PCASIFT sourcecode implemented by MATLAB and works powerful in Image processing works.

matlab回测平台。日线、周线、月线等不同周期的展示。MACD,BOLL,RSI,W&R,OBV,DMI,PVT等技术指标的展示。(Matlab back to the test platform. Show daily, Zhou Xian, on line in different period. MACD, BOLL, RSI, W&R, OBV, DMI, PVT and other technical indicators show.)

Filterbanks for digital hearing aids must use significantly different criteria than those designed for coding applications. For digital hearing aids, the filterbank channel gains must be adjustable over a large dynamic range to compensate for the hearing loss. This adjustability violates the alias cancellation properties of critically sampled filterbanks designed for coding. This paper describes a filterbank designed exclusively for hearing aid applications. Consideration will be given to the extremely limited memory, low delay and low power requirements that must be met in a typical hearing aid application.

AR过程的线性建模与功率谱估计，计算其自相关序列的估计，利用所估计的自相关值和Yule-Walker法(自相关法)，估计系数值。(The linear AR process modeling and power spectrum estimation, calculation of the estimated autocorrelation sequence, using the estimated autocorrelation values and Yule-Walker method (autocorrelation method), the estimated coefficient.)

介绍了ldpc码的发展概况，历程，各种编解码算法，对初学者有很大帮助(Describes the overview of the development ldpc code, course, a variety of codec algorithm, very helpful for beginners)

程序介绍了关于matlab小波水印。程序包括在图像三级小波变换的基础上嵌入加密水印。(The program introduces the matlab wavelet watermark. The program includes the encrypted watermark is embedded on the basis of the wavelet transform of the image three.)