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EMD_Animation
希尔伯特变希尔伯特变换 ，瞬时频率，边际谱换 ，瞬时频率，边际谱希尔伯特变换 ，瞬时频率，边际谱(希尔伯特变换 ，瞬时频率，边际谱希尔伯特变换 ，瞬时频率，边际谱希尔伯特变换 ，瞬时频率，边际谱)
- 2020-06-29 17:20:02下载
- 积分：1
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computerwork_2
2. 设 是窄带信号，定义 是在 区间上均匀分布的随机相位。 是寬带信号，它是一个零均值、方差为1的白噪音信号e(n)激励一个线性滤波器而产生，其差分方程为 。
1） 计算 和 各自的自相关函数，并画出其函数图形。根据此选择合适的延时，以实现谱线增强。
2） 产生一个 序列。选择合适的 值。让 通过谱线增强器。画出输出信号 和误差信号e(n)的波形，并分别与 和 比较。
(Computer Experiments:
1. Consider an AR process x(n) defined by the difference equation
where v(n) is an additive white noise of zero mean and variance .The AR parameters and are both real valued:
a) Calculate the noise variance such that the AR process x(n) has unit variance .Hence , generate different realization of the process x (n).
b) Given the input x (n), an LMS filter of length M = 2 is used to estimate the unknown AR parameters and . The step size is assigned the value 0.05. Compute and plot the ensemble average curve of and by averaging the value of parameters and over an ensemble of 100 different realization of the filter. Calculate the time constant according to the experiment results and compare with the corresponded theoretical value.
c) For one realization of the LMS filter, compute the prediction error
And the two tap-weight errors
and
Using power spectral plots of , show that)
- 2020-06-28 19:40:01下载
- 积分：1
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BPSK
BPSK仿真，Eb/N0=0:10,得出BER与Eb/N0的关系曲线，AWGN信道(BPSK simulation, Eb/N0 = 0:10, draw BER versus Eb/N0 of the curve, AWGN channel)
- 2013-11-12 12:04:49下载
- 积分：1
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QAM128_mod1
说明： 128QAM调制仿真的星座图。matlab源文件。(Simulation 128QAM modulation constellation diagram. matlab source file.)
- 2008-10-27 18:26:16下载
- 积分：1
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dea
xgdfht678tku,i 4u,ki. ui/ 7iin tkjntk,yurtmjuyjm kjkhh
- 2015-04-09 12:35:27下载
- 积分：1
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matlab
说明： MATLAB7的关于遗传算法的所有源程序祥解(MATLAB7.1 genetic algorithm on all the source code Explained)
- 2010-04-12 16:10:52下载
- 积分：1
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dtsII91
In telecommunications, direct-sequence spread spectrum (DSSS) is a modulation technique. As with other spread spectrum technologies, the transmitted signal takes up more bandwidth than the information signal that modulates the carrier or broadcast frequency. The name spread spectrum comes from the fact that the carrier signals occur over the full bandwidth (spectrum) of a device s transmitting frequency.
- 2013-01-05 03:33:59下载
- 积分：1
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20110907
求解有约束非线性规划实例MATLAB源程序(Solving constrained nonlinear programming)
- 2011-09-06 10:36:55下载
- 积分：1
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Lab-2---polynomial
function to calculate the integral using trapezoidal rule
- 2016-12-09 14:24:25下载
- 积分：1
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11193158108
this is power factor correction e-book
- 2010-06-12 19:25:29下载
- 积分：1
