-
twobeams
光束合成相干仿真器,模拟两个光束在空气中传播并相干,可进行参数设定。(Coherent beam combiner simulator to simulate the propagation and the two coherent light beams in the air, the parameters can be set.)
- 2013-12-27 01:47:26下载
- 积分:1
-
beni33
this is a [ortion of machine drive designind code.
- 2010-08-08 07:11:37下载
- 积分:1
-
matlab-dsb
DSB调制解调,并且加入了高斯白噪声和带通滤波器,模拟了完整的系统(DSB modem, and joined the Gaussian white noise and band-pass filter to simulate a complete system)
- 2008-06-24 22:43:59下载
- 积分:1
-
MATLAB
matlab程序设计与实例分析,能够学习很多。(matlab program design and case study)
- 2013-04-20 11:11:16下载
- 积分:1
-
shuntaichuanre12
针对多层导热特性的一个简单分析模型,可通过对不同层材料特性的设置,核算材料温度的变化。 (A simple model for the analysis of the thermal properties of the multilayer may be provided by the material properties of the different layers, accounting material temperature variations.)
- 2013-12-19 23:26:54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
-
MasterMatlab7
快速入门学习matlab的绝佳教材,保你在一周之内玩转matlab编程。(Quick start learning matlab excellent teaching materials, to protect you in a week Fun matlab programming.)
- 2010-07-26 19:10:26下载
- 积分:1
-
NOCOOP
这个代码是matlab仿真的在没有协作用户的情况下,进行的误码率性能仿真。(Matlab simulation of this code is the collaboration of users in the absence of circumstances, to carry out simulation of BER performance.)
- 2009-04-08 19:10:43下载
- 积分:1
-
convultive-BSS
卷积BSS经典文献相关的源程序。。。。。(Convolution classic literature related to the source BSS)
- 2021-04-10 16:08:59下载
- 积分:1
-
天线近场到远场的变换 NF2FFv0.3.1
天线近场到远场的变换,可实现近场采样数据到远场方向图数据的转换(antenna near field data to far field)
- 2020-06-27 03:20:01下载
- 积分:1