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NMSPR
Newton法求特定方程的最小正根的计算程序(Newton Method particular the least positive root of equation calculation program)
- 2010-12-30 14:20:24下载
- 积分:1
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Exemple2
matlab code for simulation SNR to verify capcity of channel
- 2012-05-03 23:46:16下载
- 积分:1
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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
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matlab_correlation_frequency_estimate_powerspectru
此MATLAB程序用于自相关函数的估计(包括直接法和FFT法),信号的频率估计(包括MUSIC, ROOTMUSIC,ESPRIT和MVDR)和功率谱的估计(包括LevinsonDurbin迭代法,BT法和周期图法),并附带相应的仿真图以便于对比(MATLAB for correlation estimate :direct and FFT transform frequency estimate of signals:MUSIC, ROOTMUSIC,ESPRIT和MVDR power spectrum estimate : LevinsonDurbin and BT,corresponding figures are accompanied to compare)
- 2020-11-22 21:29:34下载
- 积分:1
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LPP
Locality Preserving Projections(LPP),局部保留投影,可以找出高维空间中的数据在低维空间中的投影,并保留了数据之间的相关性(Locality Preserving Projections (LPP), partial retention projection, you can find the data in high-dimensional space in a low dimensional space projection, and retains the correlation between data)
- 2013-08-09 11:30:30下载
- 积分:1
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MATLAB-S-Function-guidance
这是一本关于MATLAB-S函数编程指导资料。(This is a MATLAB-S functional programming guidance information. )
- 2012-05-28 17:30:15下载
- 积分:1
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rat
this code is very helpfulful in understanding the basic sterps to create rat algorithm
- 2013-01-22 13:21:57下载
- 积分:1
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REFPROP
Refprop library. This library calculates thermodynamics properties for several refrigerants
- 2013-11-01 18:22:13下载
- 积分:1
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有限元-六面体单元
说明: 有限元六面体单元MATLAB代码,有限元,FEM,六面体单元,等参元(Finite element hexahedral element MATLAB code)
- 2021-05-13 05:30:03下载
- 积分:1
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zaibo
载波生成的matlab代码,可以生成通信领域中经常需要的载波(Carrier generated by matlab code, can generate communications carrier often required)
- 2009-03-01 17:04:48下载
- 积分:1