EO

5151程序集51programmeYEJING.rar5151程序集51programmeYEJING.rar(51) the procedures set) programmeYEJING.rar51) assembly) programmeYEJING.rar)

this is matlab for codesing

很实用的db5小波分解程序，希望对大家有 用(Very practical db5 wavelet decomposition program, hope to have )

獲取windows系統硬盤的一些信息，可以獲取到SN,FW,MODEL,等等信息(Get some information windows system hard disk, you can get to the SN, FW, MODEL, and so forth)

大电网潮流计算的牛顿拉夫逊算法，MATLAB程序 (Large grid flow calculation Newton Raphson algorithm, MATLAB program)

用随机信号作为SAR的发射信号！体现在距离向的分辨率具有明显优势！(SAR emission signal as a random signal. Reflected in the distance to the resolution has obvious advantages.)

Modified jakes model implementation with Walsh Hadamard code. Autocorrelation and cross correlation are the outputs

关于如何产生一个GOLD码的程序，对于在MATLAB中的应用有一定的好处，用户可以根据自己的情况加以改正达到自己的目的(on how to produce a code GOLD procedures for the application of MATLAB there are certain advantages, users can according to its own circumstances be corrected to achieve its goal)

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.)

Obsolete modulation fuction for matlab communications toolbox. It needs the ddmod function for demodulation.