Communications-Principles_matlab

简要说明了matlab中simulink模块的使用方法。(Briefly describe the matlab simulink module in use.)

在许多C程序设计中，要用到汉字进行提示或人机交互，而现行的Turbo C集成开发环境不是汉化的，如何编制能显示汉字的C程序呢？本实例提供一种在非汉化环境下正常显示汉字的方法。(in many C program design, the use of Chinese characters for hints or human-computer interaction, and the existing Turbo C integrated development environment is not finished, will show how to prepare Chinese C procedures? The examples provide an environment in the effort to show Chinese characters under the normal method.)

matlab信道编码程序，可用于仿真设计TCH/FS信道各模块，检验、测试它们的性能,仿真与分析TCH/FS信道的信噪误码性能。 (channel coding matlab procedures, design simulation can be used to TCH/FS channel of the module, test, test their performance, Simulation and Analysis of TCH/FS channel BER noise letter.)

electrical engineering

Matlab的基础教程。大学精品课程。内涵Matlab的基本操作。(Matlab based tutorial. University Courses. The basic operation of the connotation of Matlab.)

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.)

BPSK调制和解调，matlab环境下仿真实现(BPSK modulation)

歌德巴赫猜想验证工具，附质数库以及质数生成器。(Goldbach conjecture verification tools, with the Treasury and the prime number prime number generator.)

matlab设计小数延时滤波器：滤波器长度,期望延迟量可调整(matlab design fractional delay filter: filter length, adjustable delay expected)

基于卡尔曼滤波的目标跟踪和轨迹预测，广泛应用于雷达信号，MATLAB实现(Kalman filter based target tracking and trajectory prediction, widely used in radar signal, MATLAB realization)