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kalman
Carrier-phase synchronization can be approached in a
general manner by estimating the multiplicative distortion (MD) to which
a baseband received signal in an RF or coherent optical transmission
system is subjected. This paper presents a unified modeling and
estimation of the MD in finite-alphabet digital communication systems. A
simple form of MD is the camer phase exp GO) which has to be estimated
and compensated for in a coherent receiver. A more general case with
fading must, however, allow for amplitude as well as phase variations of
the MD.
We assume a state-variable model for the MD and generally obtain a
nonlinear estimation problem with additional randomly-varying system
parameters such as received signal power, frequency offset, and Doppler
spread. An extended Kalman filter is then applied as a near-optimal
solution to the adaptive MD and channel parameter estimation problem.
Examples are given to show the use and some advantages of this scheme.
- 2007-09-18 21:06:09下载
- 积分：1
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angle_count
说明： 基于matlab进行图像的滤波，轮廓提取和角度计算的综合程序，经调试可以正常运行(Matlab for image-based filtering, contour and angle of the Composite process, the debugger can operate normally)
- 2011-04-01 10:08:43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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maltlab
精通matlab科学计算书本上的一些例题(Proficient in matlab scientific computing books on some of the examples)
- 2013-11-05 17:34:02下载
- 积分：1
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sc
说明： SC is a useful function for displaying rich image data, of use to anyone wishing to visualize and save 2D data in ways beyond that which MATLAB built-in functions allow.
This function can be used in place of IMAGE, IMAGESC and IMSHOW, but does so much more. It is fast and displays images as they should be - correct aspect ratio, integer magnification, no axes. In addition, it can return the image as an output variable - useful for saving to disk, texture mapping surfaces, and post-rendering manipulation such as overlaying/combining two or more images.(SC is a useful function for displaying rich image data, of use to anyone wishing to visualize and save 2D data in ways beyond that which MATLAB built-in functions allow.
This function can be used in place of IMAGE, IMAGESC and IMSHOW, but does so much more. It is fast and displays images as they should be- correct aspect ratio, integer magnification, no axes. In addition, it can return the image as an output variable- useful for saving to disk, texture mapping surfaces, and post-rendering manipulation such as overlaying/combining two or more images.)
- 2009-08-25 19:00:06下载
- 积分：1
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matlab
浙江大学授课用的ppt的pdf版，使用教材是姚俊，马松辉. 《Simulink建模与仿真》. 西安电子科技大学出版社(Zhejiang University lectures ppt pdf version of use, use of materials is Yao Jun, Ma Songhui. 《Simulink modeling and simulation》, Xidian University Press)
- 2013-07-19 10:33:32下载
- 积分：1
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MATLAB_movie
MATLAB 程式设计入门篇之动画制作，是台湾清大资工系多媒体检索实验室出的。(MATLAB programming portal entered into animation production, Taiwan's National Tsing Hua University is funded multimedia retrieval system of laboratories.)
- 2007-04-17 13:36:50下载
- 积分：1
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GetPricesFromYahoo
Get stock data from Yahoo! Finance to Matlab.
- 2014-02-01 20:54:35下载
- 积分：1
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fdct_wrapping_matlab
采用中心旋转法来进行曲波变换，带有几个demos。方便的进行curvelet变换(Center of rotation method used to carry out curvelet transform, with a few demos. Convenient for curvelet transform)
- 2010-06-10 18:51:18下载
- 积分：1
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edgeOrientationHistogram
edgeOrientationHistogram used to find eddes in image
- 2010-08-17 17:06:42下载
- 积分：1
