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11GPS_rank_adjustment
GPS简单控制网的基线向量网的三维无约束平差源代码。采用秩亏自由网平差的数学模型。(GPS control network adjustment.utilizing the rand deficiency free adjustment method.)
- 2012-04-19 10:50:25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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ldpc_tool
功能强大的ldpc_toolkit，是一个完整的实例(A complete LDPC_decode program
)
- 2011-06-21 10:47:52下载
- 积分：1
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error
lms算法 误差收敛曲线 自适应均衡器 matlab lms算法lms算法lms算法lms算法(lms algorithm error convergence curve algorithm adaptive equalizer matlab lms lms lms lms algorithm algorithm algorithm)
- 2013-12-14 14:43:20下载
- 积分：1
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levelset
基于边界和G0分布的水平集迭代图像分割算法(level set segmentation based on edge and g0 distribution)
- 2013-05-14 16:20:26下载
- 积分：1
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fuxiaobo
脑机接口文献 复小波在脑电同步性研究中的应用 有用(Of complex wavelet of brain-computer interface literature in EEG synchronization study
)
- 2013-01-25 16:26:06下载
- 积分：1
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elm
极限学习机分类与拟合,训练采用elmtrain.m，分类与拟合用elmprediction.m.(Extreme Learning Machine classification and fitting)
- 2021-01-12 19:28:49下载
- 积分：1
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MATLAB_basic_operation_of_electronic_documents
MATLAB基本操作电子文档MATLAB basic operation of electronic documents(The basic operation of electronic documents MATLAB MATLAB basic operation of electronic documents)
- 2010-08-08 21:12:36下载
- 积分：1
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HS_multi_echelles
the Horn-schanks implemented code for matlab that represent the movement of images in multiple levels , this method is better than lucas-kannad
- 2013-05-25 09:49:43下载
- 积分：1
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waveletthreshod
小波阈值去噪，比较了软阈值，硬阈值及当今各种阈值计算方法和阈值函数处理方法的性能，通过信噪比及均方差的比较，得出各种的算法的优劣。(Wavelet threshold denoising compared soft threshold and hard threshold and the current method of calculating the various thresholds and thresholds approach the performance of function, through the signal to noise ratio and mean square deviation of the comparison, the various algorithms advantages and disadvantages.)
- 2021-04-23 09:18:48下载
- 积分：1
