erzhihua

Vérification Méthode Media

自己刚学习时练习用的软件，挺好的，如果有初学以尝试下者可(Their practice with just learning the software, very good, if beginners to try the next may)

调制识别是非协作通信中的关键技术之一，在电子对抗、软件无线电等领域 应用十分广泛。该过程介于信号检测与解调之间，由于对传输信号没有过多的先 验信息以及在接收端有很多未知的参数，例如：信号功率，载波频率和相位偏移， 时间信息等，导致对调制方式的盲识别是一项很困难的任务。此外，实际中存在 多径衰落、频率选择性和时变信道等问题，使得这项任务变得更具有挑战性。 (The modulation recognition is one of the key technologies of the non-cooperative communication, such as electronic countermeasures and software defination radio, therefore it is such a significant discipline and orientation in the research of communication field. Obviously, without enough knowledge in transmitter and verified parameters about receivers, for example signal power, carrier frequency and phase offsets and so force, it is hard to get the modulation of blind identification. What is more, for the sake of the multipath fading, frequency-selective and time-varying channels in the real scenarios the task is even harder. )

一种波达方向估计的CAPON方法。波束形成就是从传感器阵列重构源信号。(The Capon method for direction of arrival estimation.)

仿真FBG传输特性，共三个函数，利用光纤的传数矩阵和耦合模理论，可在main函数中修改参数(Simulation FBG transmission characteristics of the three functions, the use of optical fiber transmission matrix and coupled-mode theory, the parameters can be modified in the main function)

l_curve.m L曲线准则。。。。。。。。。。(l_curve.m L_curve principle............)

this code is LSB data hiding source book.

本文件中包含了很多在通信基本原理中常用的源程序，像各种调制方式，交织方式，编码方式都有很详尽的源程序。非常经典！(this document contains many of the basic principles of communication common source, like various modulation, intertwined, encoding great detail of the source. Very classic!)

基于emd算法的实现算法，用于对传感器采集到的呼吸和心跳信号尽心分离(Emd algorithm-based algorithms for breathing and heartbeat sensor to conscientious separation)

this programe for count path loss from power level in transmission media. with walfish ikegami method and implement with semolog graphic.it can show the maximum pathloss in propagation