-
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
-
greymodel
本程序主要用来计算根据灰色理论建立的模型的预测值。
应用的数学模型是 GM(1,1)。
原始数据的处理方法是一次累加法( Of the procedures used to calculate the main theory in accordance with the gray of the predictive value of the model. The application of the mathematical model is GM (1,1). Handling of the raw data is a cumulative method)
- 2009-05-09 17:13:39下载
- 积分:1
-
Cdma2k
cdma2000的上行链路的仿真,包括编码,发送,信道,解码,rake接收等功能,完全是matlab仿真。(cdma2000 uplink simulation, including encoding, sending, letters, decoding, rake receiver functions is completely Matlab simulation.)
- 2007-06-09 01:29:48下载
- 积分:1
-
3
说明: 一种很实用的风力机低电压穿越相关模型搭建及分析。(wind power model)
- 2014-10-15 22:58:12下载
- 积分:1
-
xt1-5
自动叠加,很好用的,哈哈,费了老大的劲搞的啊!!!!!(Automatic stacking
)
- 2011-11-26 00:34:01下载
- 积分:1
-
ganmi
用simulink搭建的模型参考自适应系统(use simulink)
- 2012-01-11 13:30:03下载
- 积分:1
-
ACATSP
一个简单的TSP算法程序,使用退火算法,计算最短路径的问题,供学习(A simple TSP algorithm, the use of annealing algorithm to calculate the shortest path problem, for learning)
- 2007-10-22 00:11:07下载
- 积分:1
-
mom
矩量法求八木天线的辐射问题,很有用处,欢迎学习指导(Method of Moments Yagi antenna radiation, useful, Welcome to the guide)
- 2010-10-07 12:02:17下载
- 积分:1
-
QPSK
A set of exercises for students - basics of digital modulation
- 2014-10-18 02:19:06下载
- 积分:1
-
converter3
converter for dollar and converter to peso
- 2014-12-27 12:25:29下载
- 积分:1