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esprit
跟prony算法一样,ESPRIT(Estimation of Signal Parameters Via Rotational Invariance Techniques)也是一种参数法,它是一种基于旋转不变技术参数估计的信号处理方法,此方法可以高精度地辨识电力系统中任意组合的衰减/非衰减正弦信号的频率,相位及其幅值等信息。它不需要对信号进行同步采样。此方法把信号空间分解为信号子空间和噪声子空间,能够在较短的信号长度内准确的检测出信号中各个谐波和间谐波成分。(ESPRIT)
- 2010-03-04 10:28:04下载
- 积分:1
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system
一个完整的OFDM系统仿真程序,可以从中学习如何建模(A complete OFDM system simulation program, you can learn how to model)
- 2010-05-18 11:00:00下载
- 积分:1
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FastICA_25-1
Independetn component analysis
- 2011-06-05 11:11:00下载
- 积分:1
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03607_28
DFT进行频谱分析时的三种现象
1、混叠:对连续信号采样,要求连续信号是带限的,采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏:DFT对时域信号进行了截断(相当于采样信号乘了一个窗函数),时域的乘积相当于频域卷积,改变了原信号频谱。
改用其他窗函数(非矩形)改善泄漏。
3、栅栏现象:DFT 只给出了频谱在采样点上的取值,采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分:1
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CMA_blind_equalization
对自适应线性均衡器的设计,基于matlab仿真恒模算法,对16QAM(Adaptive linear equalizer design, based on matlab simulation constant mode algorithm, 16QAM)
- 2019-05-13 20:31:47下载
- 积分:1
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suanfa
基于matlab灰色关联度计算的实现,??趍atlab灰色关联度计算的实现,基于matlab灰色关联度计算的实现,(Matlab based on gray correlation degree calculated to achieve,? ?趍atlab gray correlative degree of realization of the calculation, based on gray relational grade calculation matlab realization)
- 2008-06-16 09:52:25下载
- 积分:1
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zishiyingzaoshengduixiao
实现了基本的自适应噪声对消,以及改进的ELMS和变步长自适应噪声对消,制作了友好的GUI界面方便参数调整和观察结果(To achieve the basic adaptive noise cancellation, and improved ELMS and variable step-size adaptive noise cancellation, make a friendly GUI interface for easy parameter adjustment and observations)
- 2010-03-08 22:26:36下载
- 积分:1
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4wirelesscomm
System will automatically delete the directory of debug and release, so please do not put files on these two directory.
- 2011-04-23 07:57:58下载
- 积分:1
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598752watermark
数字水印毕业论文好材料,希望对大家毕业设计有所作用(Good material digital watermark Thesis)
- 2010-05-25 01:09:48下载
- 积分:1
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transmission_lines
Transmission line control example created in MATLAB Simulink enviroment , This model illustrate the exact modelling of transmission lines in real scenarios.
- 2015-02-27 18:56:09下载
- 积分:1