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appD
Digital Modulation and GMSK
A brief introduction to digital modulation schemes is given, showing the logical
development of GMSK from simpler schemes.
- 2010-09-11 21:06:35下载
- 积分:1
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HHT_power-system_power-quality_disturbances-detect
优秀论文及配套源码。Hilbert-Huang变换(HHT)是一种新的非平稳信号处理技术,该方法由经验模态 分解(EMD)与Hilbert谱分析两部分组成。任意的非平稳信号首先经过EMD方法处理后被分解为一系列具有不同特征尺度的数据序列,每一个序列称为一个固有模态函数(IMF),然后对每个IMF分量进行Hilbert谱分析得到相应分量的Hilbert谱,汇总所有Hilbert谱就得到了原信号的谱图。该方法从本质上讲是对非平稳信号进行平稳化处理,将信号中真实存在的不同尺度波动或趋势逐级分解出来,最终用瞬时频率和能量来表征原信号的频率含量。
本文研究了基于HHT的暂态电能质量扰动检测方法,介绍了HHT的基本原理和利用HHT检测电能质量多扰动信号的实现方法。仿真试验表明该方法可以实时检测扰动的起止时刻,持续时间和扰动幅度,适用于电能质量多扰动的监测和辨识系统。
(Hilbert-Huang Transform(HHT) is a new non-stationary signal processing technology,including the Empirical Mode Decomposition(EMD) and Hilbert spectral analysis.In this method,arbitrary non-stationary signals was divided into a series data sequence with different characteristic scales after the first EMD treatment,each sequence is called an intrinsic mode function(IMF),and then each IMF component gained corresponding the Hilbert spectrum though Hilbert spectrum analysis,a summary of all Hilbert spectrum assembled to the spectra of the original signal.In essence,this method is a stable processing for non-stationary signal,which decomposed the different fluctuations or trends in the signal in rum,and represented the frequency content of the original signal using the final instantaneous frequency and energy.
This paper study a method to detect power quality disturbances based on the HHT,in which the principle and the realization of the HHT and the realization of power quality disturbance)
- 2021-04-24 10:48:48下载
- 积分:1
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vVB__kalmaanb
vb语言实现的卡尔曼滤波源程序源码 (没有测测试,输出部分要配合相应的过程)
(the vb language Kalman filtering source source (not detected by the test, the output section with the corresponding process))
- 2012-08-29 22:49:37下载
- 积分:1
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SAXS-Integrated-Intensity
This function calculates the SAXS integrated intensity on a frame interval ‘start’ to
‘finish’.
- 2014-11-28 23:53:34下载
- 积分:1
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wavelet_function
用matlab采用双尺度方程求解小波基函数的方法 构造小波基(wavelet_function)
- 2009-10-26 11:13:29下载
- 积分:1
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chap12
matlab教学资料,很好的,一定对你有帮助的哦。(matlab teaching materials, very good, definitely help you, oh.)
- 2011-04-22 16:31:34下载
- 积分:1
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Hex
正六边形边界条件下的热扩散(自由扩散)的模拟(regular hexagen B.C. )
- 2010-05-10 12:25:06下载
- 积分:1
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banana
banana Implementacao da rede MLP canonica (backpropagation com gradiente descendente)
- 2011-05-19 01:58:08下载
- 积分:1
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delay
网络平均时延的计算,通过两种算法互相验证结果(Average network delay calculation results in two mutual authentication algorithm)
- 2013-09-06 10:36:34下载
- 积分:1
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learn_kalman
Kalman filter examples,learn_kalman
- 2010-08-09 16:31:44下载
- 积分:1