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Modeling-Rayleigh-fading-channel-based-on-modifie
This Matlab Code models a Rayleigh fading channel using a modified Jakes channel model.
A modified Jakes model chooses slightly different spacings for the scatterers and scales their waveforms using Walsh–Hadamard sequences to ensure zero cross-correlation.
alpha_n = frac{pi(n-0.5)}{2M} and eta_n = frac{pi n}{M},
results in the following model, usually termed the Dent model or the modified Jakes model:
R(t,k) = sqrt{frac{2}{M}} sum_{n=1}^{M} A_k(n)left( cos{eta_n} + jsin{eta_n}
ight)cos{left(2pi f_d t cos{alpha_n} + heta_{n}
ight)}.
The weighting functions A_k(n) are the kth Walsh–Hadamard sequence in n. Since these have zero cross-correlation by design, this model results in uncorrelated waveforms. The phases ,! heta_{n} are initialized randomly and have no effect on the correlation properties. Matlab fast Walsh-Hadamard transform function is used to efficiently generate samples using this model.
- 2015-03-10 15:15:01下载
- 积分：1
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S-M-Graficas
FDTD 1D Sullivan en este podemos encontrar la solucion por diferencias finitas de un pulso que viaja atravez de un campo electrico
- 2010-12-04 02:05:37下载
- 积分：1
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pinpufenxi
说明： 该matlab程序详细展示了频谱分析的方法，值得参考(Matlab program shows the detailed spectrum analysis, it is also useful)
- 2010-04-05 17:01:19下载
- 积分：1
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MIMO-channel
对mimo的信道模型进行仿真，在OFDM技术下，MIMO信道的特性进行仿真(mimo channel )
- 2010-05-13 18:20:11下载
- 积分：1
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chongjianxinhao
主程序产生一个稀疏信号调用子程序进行迭代重建(Main program calls subroutine to generate a sparse iterative signal reconstruction)
- 2010-06-02 12:59:40下载
- 积分：1
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280_FA4-3
Predictive Control of Helicopter
- 2012-06-13 21:19:48下载
- 积分：1
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matlab
对具有随机噪声的二阶系统的模型辨识，进行标幺化以后系统的参考模型差分方程为
(7.90)
式中， 为随机噪声。由于神经网络的输出最大为1，所以，被辨识的系统应先标幺化，这里标幺化系数为5。利用图7.5正向建模(并联辨识)结构，神经网络选用3-9-9-1型，即输入层i，隐层j包括2级，输出层k的节点个数分别为3、9、9、1个；
(Model identification of two order systems with stochastic noise)
- 2016-07-19 10:39:20下载
- 积分：1
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Implementation_of_an_OFDM_Synchronization_Algorith
有关OFDM时域和频域同步的硬件实现，在FPGA,DSP和ASIC上实现，并做了对比。(On the OFDM time domain and frequency domain synchronization hardware implementation, in the FPGA, DSP and ASIC to achieve, and has done a comparison.)
- 2008-12-18 14:58:31下载
- 积分：1
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motionEstTSS
Implementation of the TSS (three step search) algorithm in matlab which is used for motion estimation and compensation technique for macro blocks.
- 2009-11-02 06:48:35下载
- 积分：1
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matlab_3D
matlab 中的3D模型的建立和分析，不少经典的使用。(3D model is used in the matlab)
- 2009-12-03 12:47:47下载
- 积分：1
