DSSS

％ 用于模拟PN结中载流子的分布、电场和电势 ％ 总长为 L 的半导体截面上，左侧为 N 区，掺杂浓度 NA；右侧为 P 区，掺杂浓度为 ND ％ 假设截面积足够大( Used to simulate the PN junction carrier distribution, electric field and electric potential L total length of the semiconductor section, left for N areas, doping concentration NA the right for the P zone, doping concentration ND assumption for the cut-off an area large enough)

语音端点检测，有助于除去语音信号中的噪音部分，留下有用的携带信息的部分，有利于提取其中有用的语音特征参数，从而提高识别率。(Endpoint detection, helps remove the noise part of the speech signal, leaving useful information-bearing part, is conducive to extract the speech feature useful to improve the recognition rate.)

基于matlab编写的基本的M序列和gold序列的生成，作为其他伪随机码生成的基础。对于初学者很有帮助的(Prepared based on matlab basic sequence of M sequence and the generation of gold, as other pseudo-random code generated basis. Very helpful for beginners)

数字图像频域滤波处理，分别进行二阶巴特沃斯(Butterworth)高通、低通滤波器。(Digital image processing frequency domain filtering, respectively second-order Butterworth (Butterworth) high pass, low pass filter.)

用于运动捕获数据的读取，所读取的数据是96维度的矩阵(Motion capture data for reading data, the read-dimensional matrix is 96)

bidirectional converter with the fuel cell

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. )

MATLAB CODE FOR SIMULATION OF A SUCCESSIVE APPROXIMATION CONVERTER(MATLAB CODE FOR SIMULATION OF ASUCCESSIVE APPROXIMATION CONVERTER)

程序实现了均匀介质、分层介质中规则网格声波有限差分的正演模拟。(The program realizes the forward modeling of sound wave propagation in homogeneous medium and layer homogeneous medium using finite difference method with regular grid.)

Conjugate gradient method