BussgangCMA

说明：  关于LDPC编译码的程序，希望大家喜欢。 其中有具体的编码，解码，调制等模块。(on LDPC encryption procedures, hope you like them. Which specific encoding, decoding, modulation and other modules.)

Photonic crystals are attractive optical materials for controlling and manipulating the flow of light. One dimensional photonic crystals are already in widespread use in the form of thin-film optics with applications ranging from low and high reflection coatings on lenses and mirrors to colour changing paints and inks. Higher dimensional photonic crystals are of great interest for both fundamental and applied research, and the two dimensional ones are beginning to find commercial applications. The first commercial products involving two-dimensionally periodic photonic crystals are already available in the form of photonic-crystal fibers, which use a microscale structure to confine light with radically different characteristics compared to conventional optical fiber for applications in nonlinear devices and guiding exotic wavelengths. The three-dimensional counterparts are still far from commercialization but may offer additional features such as optical nonlinearity require

这些程序是关于D2D的相关仿真程序。有助于读者理解D2D相关内容。(These programs are related to the D2D simulation program, to help readers understand the relevant content of D2D)

QAM调制的ＭＡＴＬＡＢ程序仿真，思路清晰，既可以学习如何用ＭＡＴＬＡＢ编程，又可以理解通信调制技术！(QAM MATLAB simulation procedures, clear thinking, can learn how to use MATLAB programming, but also to understand communication modulation technology!)

混沌算法的详细讲解，及基本的matlab代码实现，入门必备的(Explain in detail the chaos algorithm matlab code and basic, entry-essential)

Copyright (c) 2017, Le Zhang All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution(THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.)

利用FFT进行滤波，可以选取任意频带数据，并恢复响应频带数据的时程信号(Using FFT filtering, can choose any bands data, and restore the time history of response frequency band data signal)

说明：  用matlab编写的布谷鸟算法，一种智能算法来解决无约束优化问题(The cuckoo algorithm written in matlab, an intelligent algorithm to solve the unconstrained optimization problem)

说明：  Total variation applied to Compted Tomography

说明：  msk调制解调程序，利用matlab进行仿真，通信类设计可用(msk modulation and demodulation process simulation using matlab, Communications design available)