CG1

QPSK调制下的信道信噪比的分析与研究，里面的仿真不错，很详细。(QPSK modulation of channel signal to noise ratio analysis and research, which the simulation well, very detailed.)

一个雷达回波模拟的matlab程序包,含有在RCS服从卡方分布,瑞利分布,对数正态分布下目标的的雷达散射截面模拟子程序，(Matlab simulation of a radar package, containing the RCS subject to chi-square distribution, Rayleigh distribution, lognormal distribution of the target' s radar cross section simulation subroutine,)

差分编码的仿真程序，包含三个文件，给出了仿真性能！(Simulation of differential encoding process consists of three documents, the simulation performance!)

mobile multipath fading channel empirical model HATA model for vehicular, pedastarian and urban/suburban demographic

用matlab产生随机矩阵，特别是在语音信号处理中随机采集语音材料很有用。(Random matrix with matlab, especially in the speech signal processing in the usefulness of randomly collected voice.)

产生一个正弦衰减曲线，进行快速傅里叶变换，并画出幅值图，相位图，实部图，虚部图(Decay to produce a sine curve, the fast Fourier transform, and draw magnitude diagram, phase diagram, the real figure, the imaginary part of Fig.)

说明：  该程序的优点在于障碍可以自己设置，也可以读图。(The advantage of this program is that obstacles can be set by themselves or read pictures.)

说明：  结合回声消除和语音增强方法的double talk算法，能在噪声环境下定出语音的端点(light echo cancellation and voice enhancement method of double talk algorithm can be noisy environment set voice endpoint)

用 LDPC 解码法，对原始信号通道的噪声进行评估，消去。具体原理可参照IEEE TCOM的论文。(Channel Noise Estimation or correlation estimation for distributed source coding Using Particle based Belief Propagation for LDPC decoding in AWGN and BSC models. This code is partially based on our published journal papers with some additional improvements. In this code, we removed the parameter lambda to reduce the number of free parameters. PBP estimator is distributed in the hope that is will be useful, but without any warranty. The codes have not been optimized, so the estimation speed may be slow. To use PBP estimator source code in your research, please cite our journal papers published in IEEE TCOM. )

对于抛物方程的具有差分形式的高精度线性迭代法(linear itearnating method)