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blcdm
无刷直流控制系统的simulimk仿真模型(Brushless DC control system simulation model simulimk)
- 2009-03-13 21:19:32下载
- 积分：1
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cv_fenxi1
matlab 代码，主要用于计算一数据矩阵的标准差，方差，变异系数，话三维曲面图(matlab code, data matrix used to calculate a standard deviation, variance, coefficient of variation, then D surface chart)
- 2013-10-31 19:58:00下载
- 积分：1
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Unapodized_SAW_Filter
saw devie for Unapodized_SAW_Filter
- 2014-01-17 22:51:58下载
- 积分：1
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Fuzzy_PID
基于Matlab的模糊自适应PID控制器仿真研究
传统PID在对象变化时，控制器的参数难以自动调整。将模糊控制与PID控制结合，利用模糊推理方法实现对PID参数的在线自整定。使控制器具有较好的自适应性。使用MATLAB对系统进行仿真，结果表明系统的动态性能得到了提高。(Fuzzy adaptive PID controller based on Matlab simulation
Traditional PID object changes, the controller parameters are difficult to be adjusted automatically. Fuzzy control and PID control to achieve PID parameters online self-tuning fuzzy inference method. Controller has better adaptability. Using MATLAB system simulation results show that the dynamic performance of the system have
)
- 2012-03-15 13:58:58下载
- 积分：1
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ABC_Free_Space
自由空间中电磁波传播的fdtd算法的matlab实现(Electromagnetic wave propagation in free space of the realization of fdtd algorithm matlab)
- 2009-06-05 16:06:28下载
- 积分：1
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PLS
这是很全面偏最小二乘法程序,并且具有中文注释，有效帮助大家利用PLS算法。(It is program of Partial least square.It is noted by chinese.)
- 2010-06-02 15:07:53下载
- 积分：1
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fft
使用快速FFT求序列平均周期.输入时间序列，返回快速傅里叶变换FFT计算出的序列平均周期。求混沌序列最大Lyapunov指数时，要求序列平均周期。(Fast FFT request sequence the average cycle)
- 2012-06-28 21:43:19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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butterworthlpdf
巴特沃斯數字低通濾波器。採樣率8000HZ，fp=2100hz,fs=2500hz,Rp=3db,Rs=25db.(butterworth LPF)
- 2009-12-03 20:12:48下载
- 积分：1
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TP3-part1
Image treatment file:image filters and beginners commands
- 2011-07-08 09:35:20下载
- 积分：1
