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leach
leach matlab code for wireless sensor networks
- 2014-01-20 16:23:34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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huadongbai
利用MATLAB求解的滑动摆的运动。希望对大家有帮助。(slide pendulum
)
- 2010-12-15 16:59:02下载
- 积分：1
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BOC_ACF
基于matlab的BOC信号的自相关函数，阶数n可以自定义，正余弦相位也可以自定义；CBOC的自相关函数程序(MATLAB based on, BOC_ACF, n_order,CBOC_ACF)
- 2012-05-04 11:43:01下载
- 积分：1
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gaijin_smith
smith算法进行改进，可以有良好的结果，是smith的一种很好改进方法。(smith)
- 2010-08-22 16:01:22下载
- 积分：1
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Augmented-recursive-least-squares
增广递推最小二乘参数辨识matlab程序(Augmented recursive least squares parameter identification procedure)
- 2012-04-14 16:32:15下载
- 积分：1
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callbh
IAKBWC WICB WIEWBCW WEIUCB
- 2013-03-18 11:01:35下载
- 积分：1
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iterative-method-matlab-code
matlab迭代法代码，很不错，值得看看(iterative method matlab code, very good, worth a look)
- 2013-11-15 17:09:57下载
- 积分：1
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Desktop
Codes for biometric system performencces uation. ROC curve, EER, FAR, FRR, Accuracy
- 2015-03-08 03:50:39下载
- 积分：1
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e
说明： 电磁波在自由空间传播的MATLAB编程，给出了仿真的波形(MATLAB programming for electromagnetic wave propagation in free space)
- 2017-09-25 09:50:21下载
- 积分：1
