-
PSK
说明: 基于MATLAB的PSK调制
内含源程序与论文(Based on MATLAB-PSK modulation with papers containing the source)
- 2008-10-22 17:21:44下载
- 积分:1
-
power_voltmeasure
power_voltmeasure,matlab仿真文件,电力电子、功率电子控制方面很有价值,调试通过(aspects of power_voltmeasure, matlab simulation files, power electronics, power electronics control valuable debugging through)
- 2013-02-28 14:21:25下载
- 积分:1
-
2PSK
仿真2PSK数字通信系统。信道中噪声模型为加性高斯白噪声。接收端有自适应滤波器。(Simulate 2PSK communication system. Noise in channel is ideal additive Gaussian white noise. Adaptive filter is designed at receiving terminal.)
- 2014-12-22 13:03:56下载
- 积分:1
-
matlab
在matlab环境下在信道下实现bpsk仿真,有调制程序,解调程序,误码率分析等等。(Code to achieve BPSK simulation)
- 2015-04-09 21:19:08下载
- 积分:1
-
simulation
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.)
- 2015-11-24 17:16:20下载
- 积分:1
-
zuidashanfenge
经典最大二维熵分割法,已经通过验证 运行效率极高(Classic maximum entropy partition method has been validated high efficiency)
- 2010-11-26 10:56:09下载
- 积分:1
-
gg
说明: MATLAB code for simple edge detection algorithms including simple mask, sobel mask, Gaussian derivatives.
- 2011-01-05 01:42:40下载
- 积分:1
-
DSP_MATLAB_library
说明: DSP MATLAB 函式庫 for study and research(DSP MATLAB library)
- 2010-04-03 18:42:29下载
- 积分:1
-
awgn$qpsk
这是在AWGN信道下四相键控调制,以及其性能分析。(This is the AWGN Channel 4 phase shift keying modulation, as well as its performance analysis.)
- 2007-04-07 11:04:28下载
- 积分:1
-
mat1234151616
关于matlab的两篇很有用的文章,学习matlab的必备啊!(on Matlab two very useful article, the essential learning Matlab ah!)
- 2007-05-30 09:45:44下载
- 积分:1