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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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FECG_hdl_fix1
MATLAB HELP FUNDENMENTAL IN YOUR CODE FOR HELPING
- 2014-11-22 01:33:59下载
- 积分：1
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modmap函数
说明： 2012版本以后就没有这个函数了，希望对大家有用，有问题私信我(modmap in matlab thanks)
- 2021-04-24 21:58:47下载
- 积分：1
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simulation
说明： matlab系统仿真
计算机仿真和辅助设计概述（1）
第二章MATLAB语言基础（5）
第三章控制系统的数学描述与建模（4）
第四章控制系统的分析方法（4）
第五章SIMULINK仿真基础（6）(matlab simulation computer-aided design simulation and an overview of (1) chapter based on MATLAB language (5) Chapter III control system mathematical description and modeling (4) Chapter IV control system analysis method (4) Chapter V SIMULINK simulation basis (6))
- 2008-09-21 23:45:18下载
- 积分：1
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Wiener1
维纳滤波器的设计与实现程序，对初学者会有帮助(Wiener filter design and implementation of the program, will be helpful for beginners)
- 2011-08-14 15:39:23下载
- 积分：1
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APF_Threelevel_SPWM_VolageControl
本仿真采用dq原理检测谐波,采用PI闭环控制策略(This simulation uses DQ principle to detect harmonic, and adopts PI closed-loop control strategy)
- 2017-07-13 16:34:54下载
- 积分：1
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judger
最小错误率和最小风险贝叶斯分类器，附带示例数据(Minimum error rate and minimum risk Bayes classifier, with sample data)
- 2010-03-12 10:45:24下载
- 积分：1
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DSP-MCMA.txt
DSP上用MCMA算法设计自适应均衡器学通信的可以看看，在MATLAB中有所涉及。(DSP algorithm design on the use of MCMA learn communication adaptive equalizer can see, in MATLAB, has been involved.)
- 2011-05-11 15:33:37下载
- 积分：1
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ACO_Peng_V4
这是我用matlab编写的，利用蚁群算法（ACO）求连续函数最优解的源码。是对段海滨《蚁群算法原理及应用》一书中，网格策略法的实现。(This is my prepared using Matlab, using ant algorithms (ACO) function for the optimal solution for the source code. On the waterfront of the "ant colony algorithm and application of the principle of" one book, mesh Strategy Implementation Act.)
- 2007-04-19 12:20:26下载
- 积分：1
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enricacode
enricacode.zip一种ICA算法(enricacode)
- 2010-10-22 14:31:11下载
- 积分：1
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