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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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xiaoboyuyinxinxinyingcang
matlab 源码,基于小波变换的语音信息隐藏的实现,对原始语音信息和水印信息都经过三层小波分解处理后,将水印信息的低频信号嵌入原始语音信号的部分高频信号部分实现隐藏.源代码不仅给出隐藏过程,并且给出的在随机噪声,重采样,信息压缩情况下的抗攻击特性.源代码清晰有注释(matlab source code, based on wavelet transform voice messages hidden realize, the original voice information and watermark information after a three-treatment, after wavelet decomposition, the watermark information embedded in the low-frequency signals of the original speech signal realize some hidden part of high-frequency signals. source code is given not only to hide the process, and given in random noise, resampling, compression of information in case of anti-attack features. source code has a clear Notes)
- 2007-10-10 11:20:34下载
- 积分:1
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c18_cdmacal
耦合影响格子序列仿真,随机性,平衡性,级多瓣分治混沌序列在cnma中的应用(Simulation of the impact of lattice coupling sequence, randomness, balance, class of chaotic sequence多瓣divided the application in cnma)
- 2009-06-03 11:37:17下载
- 积分:1
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P1
说明: Amplitude Moduladion code in matlab
- 2009-06-04 06:08:11下载
- 积分:1
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pso
说明: 带有测试函数的PSO算法源代码,用matlab开发(Test function with the source code of the PSO algorithm, developed using matlab)
- 2008-11-25 17:57:29下载
- 积分:1
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Untitled
计算球体重力异常G,以及2阶导数,3阶导数的matlab 程序(Sphere calculated gravity anomaly G, and 2-order derivative, 3-order derivative matlab program)
- 2010-06-02 16:23:32下载
- 积分:1
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haha
Burg算法的程序,还有改进的 Burg算法的程序(Burg algorithm procedures, as well as improved procedures Burg algorithm)
- 2014-12-22 14:47:42下载
- 积分:1
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lcdp
数学建模经典问题轮船调配问题,详细解答了各个问题,并附有轮船到达的模拟程序(Mathematical modeling of the classic problems ship deployment issues, detailed answers to each question, along with the ship arrived simulation program)
- 2014-02-08 09:49:14下载
- 积分:1
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BP
说明: 这是一个基于matlab的三层神经网络算法,赋予不同的向量可对权值进行训练(This is a three-layer neural network matlab-based algorithm can give different weight vector for training)
- 2010-01-06 19:36:01下载
- 积分:1
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Computational-Photonics--An-Introduction-with-MAT
Computational Photonics, An Introduction with MATLAB
- 2013-07-24 21:56:26下载
- 积分:1