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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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IIR
用matlab实现IIR滤波器的仿真，得到其辐频特性和相频特性曲线。(IIR filter implementation using matlab simulation, the radiation frequency characteristics and phase-frequency characteristic curve.)
- 2011-07-08 21:45:09下载
- 积分：1
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chapter-3
冈萨雷斯数字图像处理配套matlab例程，第三章。代码里面有详细解释，适合初学者同步学习。(Gonzalez digital image processing supporting Matlab routines, chap. There is a detailed explanation of the code, suitable for beginners synchronous learning.)
- 2013-04-27 12:13:28下载
- 积分：1
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coefficientcalculating
计算一个序列的AR模型系数的前3个系数值,非常好用(Calculating a sequence of former three coefficients AR model coefficients, very handy)
- 2015-03-03 16:18:47下载
- 积分：1
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lorenzattractor
利用matlab生成洛仑兹混沌吸引子，可以通过修改其他的参数和方程得到不同稳定态或其他吸引子(A matlab code for lorenz chaotic attractor in which the parameters may be changed to get other phase portrait.)
- 2014-10-04 15:22:58下载
- 积分：1
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mine
用凯瑟窗设计一个数字带通滤波器，设计指标为
低阻带：ws1=0.2pi,as=70dB,
低通带：wp1=0.35pi,ap=1dB,
高通带：wp2=0.65pi,ap=1dB,
高阻带：ws2=0.8pi,as=60dB(
Kaiser window design with a digital band-pass filter design specifications for the
Low resistivity zone: ws1 = 0.2pi, as = 70dB,
Low-pass band: wp1 = 0.35pi, ap = 1dB,
High-pass band: wp2 = 0.65pi, ap = 1dB,
Impedance with: ws2 = 0.8pi, as = 60dB
)
- 2011-12-03 00:19:33下载
- 积分：1
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Untitled
超短脉冲对光学元件的热分布研究，在第j个高斯脉冲打上去之后，元件表明的温度分布情况(The temperature distribution of the heat distribution of ultrashort pulses of optical components, after the j-th Gaussian pulse beat up, elements indicated)
- 2015-04-22 23:30:36下载
- 积分：1
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poleplacement
线性系统中用于极点配置的标准算法，用于求解反馈增益矩阵(The standard algorithm to solve the poles placement in linear systems, which is useful in the solution of the feedback gain matrix.)
- 2010-07-17 16:01:05下载
- 积分：1
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gold
gold序列的产生。随机产生gold序列。(gold sequence generation. Randomly generated sequence of gold.)
- 2008-04-13 16:36:39下载
- 积分：1
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schumann_resonance
The Schumann resonance frequencies are a set of eigenmodes in the extremely low frequency (ELF) portion of the electromagnetic field spectrum. These frequencies are only present for planetary-like bodies with a substantial ionosphere acting as a perfect electric conductor, thus forming a resonance cavity with the surface. In this example, the Schumann resonance frequencies for the Earth are calculated.
- 2009-05-14 22:23:51下载
- 积分：1
