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10[1].1.1.66.2227
In this paper, we present a novel data-based method for simultaneous Maximum Likelihood
(ML) symbol and carrier-frequency o畇et estimation in Orthogonal frequencydivision
multiplexing (OFDM) systems. Statistical properties introduced by the cyclic
pre痻, a guard space between OFDM symbols, provide su眂ient information about the
unknown parameters. It is shown that the redundancy introduced by this cyclic pre痻
allows the estimation to be performed without additional pilots. Simulations show that
the performance of the frequency estimator is applicable in a tracking mode while the
timing estimation can be used in an acquisition mode.
- 2010-08-18 12:18:23下载
- 积分：1
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fwdblockstego
this source code based on steganography and developed in matlab. in steganography we can hide any data like images in another image.
this method based on block processing method.
- 2009-03-23 22:25:05下载
- 积分：1
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-multi-beam-
菲涅尔区聚焦多波束天线空间谱估计性能分析(Fresnel zone focusing spectrum estimation performance of multi-beam antenna spatial analysis)
- 2013-12-26 12:41:37下载
- 积分：1
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enhencement
利用FDTD软件计算纳米材料的吸收、散射(we use FDTD methord to simulate the absorption and scattedring cross section)
- 2014-09-03 11:17:38下载
- 积分：1
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matlabbeam
两单元的受力分析，可以得到应力、应变等重要的参数信息(Mechanical analysis of the two units can be important parameters of the stress, strain, etc.)
- 2012-07-26 11:05:51下载
- 积分：1
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gprmax2d_readmodel
一个m函数，可以读取GprMax2d的模型数据，是一个探底雷达正演模拟很有用的m代码(The m function model can the read GprMax2d the data, a dip radar forward simulation is useful m code)
- 2013-04-07 20:46:06下载
- 积分：1
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bpsinx
采用bp神经网络对函数y=sin（x）进行训练，然后用测试集对训练的函数进行测试，也就是函数逼近sin（x)的曲线(Bp neural network using the function y = sin (x) for training, and then use the test set to test the training function, that is, function approximation sin (x) curve)
- 2014-01-15 16:44:54下载
- 积分：1
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FEM_Eq2
to solve the ordinary differential equation given as
x^2 u - 2x u - 4u = x^2, 10 < x < 20
u(10) = 0 and u(20) = 100
using 10 linear elements
- 2010-10-28 18:50:14下载
- 积分：1
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sjb
说明： 使用FFT分析三角波信号的频谱，讨论采样点数、采样频率对谱分辨率的影响。对数据叠加白噪声后再次分析实验结果。(FFT analysis of the use of the triangular wave signal spectrum to discuss the sampling points, the sampling frequency of the impact of spectral resolution. White noise superimposed on the data after analysis of experimental results.)
- 2008-11-17 21:41:02下载
- 积分：1
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gridside
实现了蓄电池的并网，其中包含了蓄电池模型、四象限变流器模型和控制器模型，控制器控制有功无功，实现蓄电池和交流系统间的功率交换(which contains the battery model, four-quadrant converter model and the controller model, the controller controls the active and reactive power to achieve the battery and AC power exchange between systems.)
- 2020-09-15 21:27:56下载
- 积分：1
