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BCFO
We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation,
phase-shift keying, and pulse amplitude modulation
communications systems.We study the performance of a standard
CFO estimate, which consists of first raising the received signal to
the Mth power, where M is an integer depending on the type and
size of the symbol constellation, and then applying the nonlinear
least squares (NLLS) estimation approach. At low signal-to noise
ratio (SNR), the NLLS method fails to provide an accurate CFO
estimate because of the presence of outliers. In this letter, we derive
an approximate closed-form expression for the outlier probability.
This enables us to predict the mean-square error (MSE) on CFO
estimation for all SNR values. For a given SNR, the new results
also give insight into the minimum number of samples required in
the CFO estimation procedure, in order to ensure that the MSE
on estimation is not significantly affected by the outliers.
- 2007-09-17 23:03:28下载
- 积分：1
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SonarDemo
,Sonar Demo,Sonar Demo
- 2012-03-26 11:59:22下载
- 积分：1
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QliuuguifeenA
QAM16调制的实现 matlab源程序源源码 星座图的输出与结果都正确 可直接使用。
(Matlab source source source constellation of QAM16 modulation output results are correct can be used directly.)
- 2012-07-25 23:06:40下载
- 积分：1
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wavelet-for-denosing
用于滤除各种信号中所带有的噪声信号而编写的小波滤波通用程序(general program of wavelet filter for filter out the noise in various signals)
- 2015-02-09 15:00:40下载
- 积分：1
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CS_OMP
压缩感知OMP重构算法,先进行随机感知，最后使用OMP算法重构(compressed sensing omp reconstructive aogorithm)
- 2012-02-06 15:58:23下载
- 积分：1
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autocontrast
contrast adjusment
Contrast is the difference in luminance or color that makes an object (or its representation in an image or display) distinguishable. In visual perception of the real world, contrast is determined by the difference in the color and brightness of the object and other objects within the same field of view. Because the human visual system is more sensitive to contrast than absolute luminance, we can perceive the world similarly regardless of the huge changes in illumination over the day or place to place. The maximum contrast of an image is the contrast ratio or dynamic range
- 2015-02-25 17:26:20下载
- 积分：1
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mapminmax
matlab7.0均一化函数mapminmax，便于进行均一化分析处理。 (Matlab7.0 homogenization function mapminmax, easy to carry out homogenization analysis)
- 2015-12-06 21:40:09下载
- 积分：1
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mdata
这个程序是对主动配电网的网损计算的，结果精确，程序简单(This program is a proactive network distribution network loss calculation, the results are accurate, simple procedures)
- 2016-10-01 22:16:07下载
- 积分：1
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experiment1
说明： 噪声中正弦信号的现代法谱分析，采用了直接法、间接法、Bartlett法和Welch法，分别分析了不同窗长度、不同窗函数和不同信噪比对谱估计的影响。(Modern normal spectrum analysis of sinusoidal signal in noise adopts direct method, indirect method, Bartlett method and Welch method. The effects of different window lengths, different window functions and different signal-to-noise ratios on spectrum estimation are analyzed respectively.)
- 2019-03-06 15:41:52下载
- 积分：1
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OFDM_System_Generator
Model of OFDM transmiter based on System Generator in Matlab
- 2009-12-09 09:32:44下载
- 积分：1
