-
Prob_3_2
Source code for gradient algorithm
- 2011-11-28 22:46:57下载
- 积分:1
-
Matlab
C4.5的matlab实现,并且进行了详细的注释,并进行了有序化处理(C4.5 matlab realize, and conducted a detailed notes, and conducted an orderly processing)
- 2013-11-14 15:50:45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
-
thewaveandpowerdestinyof2fsk
在MATLAB下实现FSK调制解调。并画出了每一步的波形以及功率谱密度图(in MATLAB under FSK modulation and demodulation. And the mapping out of every step of the waveform and power spectral density map)
- 2007-04-11 09:41:43下载
- 积分:1
-
patternclassification
杜达的《模式分类》第二版的配套的Matlab源代码,相信对大家一定会有帮助(Selecting the "classification" of the second version of the Matlab supporting source code, I believe it will benefit everyone)
- 2007-04-21 21:08:57下载
- 积分:1
-
220.1
中国移动多媒体广播CMMB标准第一部分文档,广播信道帧结构 信道编码和调制(CMMB China Mobile Multimedia Broadcasting, the first part of the document standard, broadcast channel frame structure channel coding and modulation)
- 2010-05-10 13:27:56下载
- 积分:1
-
MATLAB.Demystified.Apr.2007
关于matlab基本功能,向量、矩阵运算等(Basic functions on matlab, vector, matrix operations, etc.)
- 2010-05-30 15:45:49下载
- 积分:1
-
RRD
采用matlab软件进行编程,用于模拟计算煤粉的Rosin-Rammler颗粒分布。(Matlab software programming Rosin-Rammler particle size distribution for simulation coal.)
- 2020-11-24 10:19:33下载
- 积分:1
-
MATLABcode
matlab在振动信号处理中的应用代码,基本包含所有基础的信号分析(Signal analysis matlab vibration signal processing application code that contains all the basic foundation)
- 2016-04-17 16:33:21下载
- 积分:1
-
RTDS-MG-Hybrid-sim
本文围绕以可再生能源发电装置和蓄电池储能为主体的微网系统展开研究,
介绍了微网系统半实物仿真平台的设计思路和实现方法,并对微源的控制策略以
及微网系统的并离网切换特性进行研究(This dissertation focuses on microgrid with only renewable resources and
battery inverters,points out mentality of designing and implementation method of the
microgrid power hardware-in—the-loop simulation(PHILS)platform,and researches on
microsources control strategies and microgrid grid—connected and islanding switching
method)
- 2020-09-10 13:38:00下载
- 积分:1