Network-Security

拥有VC界面的KALMAN滤波代码，仿真界面清晰易懂。(KALMAN filter with VC interface code, simulation interface clear and easy to understand.)

说明：  安德森经典著作：最优滤波，学习最优滤波的基础教材(Anderson classics: the optimal filter, optimal filter based learning materials)

matlab classic program, which the code is simple, powerful, video material I have

apf with different controllers

说明：  双音频按键识别 背景： 打电话拨号时，每次按键会发出不同的声音，这些声音实际上是由一些固定频率的正弦信号合成的。因为每个按键声音包含两个不同频率的正弦信号，因此也被称为“双音频”信号，简记为DTMF。这相当于是对不同键位用‘音频’进行了编码，如同计算机领域中用数字0和1对处理对象（包括键盘）进行编码。(Two-tone buttons identify Background: When you call dial, each key emits different sounds, which is actually made up of some fixed frequency sinusoidal signal synthesis. Because the sound of each key contains two sinusoidal signals of different frequencies, it is also known as &quot two-tone&quot signal, abbreviated as DTMF. This is equivalent to different keys using the ' audio' encoded, as the computer industry with the numbers 0 and 1 pair of processing object (including the keyboard) to be encoded.)

通过高斯函数导数检测图像边缘，实质是方向可调小波变换检测图像边缘。(Derivative to detect image edges by Gaussian function, in essence, the steerable wavelet transform to detect image edges.)

Matlab中Simulink建模与仿真实践课件，初学者的入门宝典(Matlab Simulink modeling and simulation in practice courseware, introductory book for beginners)

this file discribe of basic using matlab, it is helpfull for technology student, who are being beginer in programe with matlab.

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. )

3gpp信道模型matlab仿真有m文件源码 方便学习3g信道相关(3gpp channel model has m file matlab simulation source code to facilitate learning 3g channel correlation)