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apcluster
发表在今年2007年Science上的一篇论文的代码实现，一种新的有效的聚类算法(Published in Science this year, in 2007 a paper on the code, a new and effective clustering algorithm)
- 2007-08-07 17:45:43下载
- 积分：1
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4.DWT
watermarking using dwt
- 2014-02-02 06:56:14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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music
这一课我们用 4 个按键来控制播放音乐。K1－K3 每个键播放一首音乐，K4 按键停止
音乐的播放
(this)
- 2010-10-17 16:25:42下载
- 积分：1
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velocity
说明： matlab编写的进行地震处理中的速度分析，包括速度转换等内容(matlab write speed of processing seismic analysis, including speed of conversion, etc.)
- 2011-04-06 16:40:37下载
- 积分：1
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erfenfa
用二分法和简单迭代法计算 在[1，2]内的近似根，要求精度达到10-4和10-5，并给出二分和迭代的次数，分析和比较算法的效率差异，最后与理论估计的二分和迭代次数作比较。(Calculated by the dichotomy and simple iterative method in [1,2] within the approximate root, requiring precision 10-4 and 10-5, and gives two points and the number of iterations, the efficiency gap analysis and comparison algorithms, and the final theory two points and the estimated number of iterations for comparison.)
- 2014-12-12 06:12:07下载
- 积分：1
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FFT_IFFT
自己编的程序，实现快速傅里叶变化，结果和matlab自带的fft2一样。(Own series of programs, fast Fourier transform, results and matlab native fft2 the same.)
- 2010-07-05 22:47:09下载
- 积分：1
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poissonal
最近在编制的一个求解微分方程的poission程序(Recently in the preparation of a program to solve differential equations poission)
- 2011-10-11 10:46:43下载
- 积分：1
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li4-17
基于matlab的振动控制的相关源代码，和其相关的simulink的仿真代码和图片(Based on the relevant source code matlab vibration control, and its associated simulink simulation code and pictures)
- 2014-03-09 22:19:48下载
- 积分：1
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sine
产生双声道音频信号！(Have a dual-channel audio signal!)
- 2007-10-29 12:01:01下载
- 积分：1
