-
chap2
说明： smith预估控制算法的ＭＡＴＬＡＢ程序实现(smith predictor control algorithm MATLAB program realization)
- 2011-03-13 13:14:33下载
- 积分：1
-
derivative
matlab数值分析计算源代码，供广大研究者学习(Numerical Analysis matlab source code, for the majority of researchers to learn)
- 2013-11-22 21:42:30下载
- 积分：1
-
wind_load
船舶操纵运动仿真模型之风力模型研究（根据经验公式得出）(Research ship motion simulation model of the wind model manipulation (based on empirical formulas derived))
- 2014-01-10 12:27:26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
-
D2D
无线信息和能量同传的D2D通信，拉格朗日求解凸优化(D2D communication between wireless information and energy transmission)
- 2018-09-11 20:31:53下载
- 积分：1
-
matlab
该电子书用于初学者的学习软件开发和应用,使初学者比较快速的学习MATLAB(book for beginners learning software development and application of)
- 2010-03-04 17:10:25下载
- 积分：1
-
PID
实用的PID程序，利用龙格库塔法解微分部分，并做了个阶跃实验(Practical PID program using the Runge-Kutta method solution of the differential part, and a step experiment)
- 2012-07-09 21:30:51下载
- 积分：1
-
DPSK
DPSK系统的调制解调仿真，包括原理以及源代码和仿真结果，十分完整，包含了DPSK的相干解调，非相干解调，有自己的许多心得，希望对初学者有帮助(Modulation and demodulation of DPSK system simulation, including schematics and source code and simulation results, very complete, contains DPSK coherent demodulation, non-coherent demodulation many experiences, hope helpful for beginners)
- 2013-03-12 20:45:02下载
- 积分：1
-
Circular_hough
it s used to detect circles in edge image as input by Hough transform. you can assign a region of interest (ROI) to find center of circle in it.it s effective because time of run is decreased.
- 2009-12-03 16:39:19下载
- 积分：1
-
gabor
cgftezydnh,nvvnv nhfjglgjh uoygjgj juyiglkbj,m uyjg jjh
- 2013-01-29 18:41:04下载
- 积分：1
