SimpleLocalization22

malab的simulink中的MDL模块源码，供参考(malab the MDL module in simulink source for reference)

一阶熵、二阶熵和差分熵c++程序 求熵用的 (A first order, second order entropy and entropy difference entropy ofc++ program)

Shamir Secre Sharing

在一个移动通信系统中，发射信号是一个未调制的音频x(t)=cos(2πft)，其中f=f0+fi。设标称载波为f0=1GHz，并设fi =512Hz。假定移动用户在一个繁忙的高速公路上距离基站l公里处的地方，从开始从每小时60公里的速度开始，其速度（在0.01秒的时间间隔内测量）以1/2的概率随机的增加或减少1/10公里每小时。试仿真移动用户在这2s的时间间隔内所接收到的信号(及其频谱)。接收信号可以表示为： y(t)=a(t)Cos[2π(fo+f1)(t-△t)] 式中 △(t)=d(t)/c 且 a(t)=k/d2(t) 在上面的表达式中d(t)是在t时刻基站与移动用户的距离，c是光速，△(t)是传播延迟，而a(t)是信号在t时刻的衰减，并假设在这2s内a(t)是一个常数。利用复低通等效模型来进行仿真。(In a mobile communication system, the transmitted signal is an unmodulated audio x (t) = cos (2πft), where f = f0+ fi. Let nominal carrier of f0 = 1GHz, and set fi = 512Hz. Assume that mobile users on a busy motorway station l kilometers place, starting the beginning of 60 kilometers per hour, the speed (measured in 0.01 second interval) to increase the probability of a random 1/2 or reducing 1/10 km/h. Simulation test signal which the mobile subscriber in the 2s time intervals of the received (and its spectrum). The received signal can be expressed as: y (t) = a (t) Cos [2π (fo+ f1) (t- △ t)] Where △ (t) = d (t)/c And a (t) = k/d2 (t) In the above expression, d (t) at time t is a base station and a mobile user s distance, c is the speed of light, △ (t) is the propagation delay, and a (t) is the attenuation of the signal at time t, and assuming that 2s within a (t) is a constant. Using complex low-pass equivalent model for emulation.)

说明：  提取线性预测倒谱系数的matlab程序，使用的是自相关法(Linear prediction cepstral coefficients extracted the matlab program, using the autocorrelation)

DS CDMA simulation matlab source code

Bloom效果(附代码), 很酷的一个效果，效率不算高。互相交流一下。看看吧！(Bloom effect (with code), a cool effect, efficiency is not high. Exchange about. Let' s see it!)

说明：  simulink建立系统模型，设计simulink与matlab的接口，使用simulink进行简单仿真(simulink create a system model, design simulink and matlab interface, a simple simulation using simulink)

说明：  matlab pcm 数字电话 通讯仿真 无解压密码，第一次发程序，大家支持(Matlab PCM digital telephone communications simulation without extracting passwords, the first grant procedures, we support)

matlab实现通信中DSB调制。程序中相关数据不同，请根据自己需要修改。(DSB modulation matlab to achieve communication. Process data are different, modify according to their needs.)