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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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tongyuankeshe
信号经过两个独立的信道传输，两个信道的信道复增益分别为 和 。 是独立同分布的复高斯随机变量，实部虚部独立、均值为0，实部虚部的方差都是1。采用某分集技术后输出的信噪比为 ，其中 是常数， 是在 之间均匀分布的随机变量。请就不同的 、 ，用仿真的方法画出 的累积分布函数。(signal after two independent Channel Tunnel, Channel 2 Channel Minute respectively, and gain. Independence is the same complex Gaussian distribution of random variables, is the imaginary part of the Department of independence, mean 0 and the real part of the imaginary part is a variance. Using a diversity of the output signal-to-noise, which is constant, is the uniform distribution between random variables. Please different, and simulation methods paint the cumulative distribution function.)
- 2006-06-01 13:59:21下载
- 积分：1
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SCSToolboxV2
将压缩感知用于谱估计中，根据论文谱压缩感知的一些程序(Compressive sensing (CS) is a new approach to simultaneous sensing and compression of sparse
and compressible signals based on randomized dimensionality reduction. To recover a signal from its
compressive measurements, standard CS algorithms seek the sparsest signal in some discrete basis or
frame that agrees with the measurements. A great many applications feature smooth or modulated signals
that are frequency sparse and can be modeled as a superposition of a small number of sinusoids.
Unfortunately, such signals are only sparse in the discrete Fourier transform (DFT) domain when the
sinusoid frequencies live precisely at the center of the DFT bins. When this is not the case, CS recovery
performance degrades significantly. In this paper, we introduce a suite of spectral CS (SCS) recovery
algorithms for arbitrary frequency sparse signals. The key ingredients are an over-sampled DFT frame, a
signal model that inhibits closely spaced sinusoids, and classical sinusoid parameter e)
- 2012-06-29 10:10:42下载
- 积分：1
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inverter_cost
inverter price at September Reference sma and KACO this price : SUN SOLUTIONS PV ENERGY
Reactivity, responsiveness and good price.
0034 934 111 943
0034 695184917
info@sunsolutions.es
- 2014-12-10 22:05:28下载
- 积分：1
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orbit
说明： 一个关于用matlab求解转子动力学的程序，使用newMark方法(A program about solving rotor dynamics with MATLAB, using Newmark method)
- 2020-05-23 23:33:35下载
- 积分：1
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SVM-Classification-2D-examples
支持向量机 ，2d
举例SVM Classification 2D(SVM Classification 2D examples)
- 2011-09-27 17:39:52下载
- 积分：1
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Image-processing-source-code
说明： 图像处理基础算法源代码，此文件含有大多数代码的合集(Image processing algorithms based on source code, this file contains most of the code collection)
- 2011-02-28 18:51:01下载
- 积分：1
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optim
matlab优化工具箱,包括线性规划linprog.m，二次规划quadprog.m等(optim toolbox)
- 2013-09-05 13:20:58下载
- 积分：1
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Signalgenerator
complex signal generator
- 2010-09-26 02:25:54下载
- 积分：1
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MySimthBeta-1
用于无损传输线的Smith圆图软件，可以计算Zl、Z0、zin、单枝节匹配，可以在图上选点并生产图形。由于时间过得太久了，忘了具体功能，里面有我的一份具体说明。(Lossless transmission line for Smith Chart software, you can calculate Zl, Z0, zin, a single minor match point in the map selection and production of graphics. As time passes too long, forget the specific functions, which has one of my specific instructions.)
- 2011-05-01 15:39:18下载
- 积分：1
