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时-频分析中,对瞬时频率的估计和解释,其中包括算法和应用.对信号处理来说,是一篇十分有用的文章,希望大家喜欢-time-frequency analysis, the instantaneous frequency estimates and explanations These include algorithms and applications. right signal processing, it is a very useful article, hope you like
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谱分解快速算法,有助于地震信号的时频分析处理。-Fast Algorithm for spectral decomposition, contribute to seismic signals time-frequency analysis of the treatment.
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三种非平稳信号时频分析的方法 窗口傅里叶变换、wigner分布和小波变换-Three non-stationary time-frequency analysis window Fourier transform, wigner distribution and wavelet transform
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PWVD在跳频信号时频分析中的应用,希望能对大家有所帮助-PWVD in the frequency-hopping time-frequency signal analysis, hoping to help all of you
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基于时频分布的跳频信号分析研究,短时傅立叶变换,魏格纳分布,伪魏格纳分布,平滑伪魏格纳分布-Based on the distribution of time-frequency analysis of frequency hopping signals, short-time Fourier transform, Wigner distribution, pseudo-Wigner distribution, smoothed pseudo-Wigner distribution
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模拟单边带调幅及解调
基本要求:
产生300 ~ 3400Hz的调制信号,画出时域波形及频谱;
产生载波信号,频率自定义,画出时域波形及频谱;
产生加性高斯白噪声,画出时域波形及频谱;
单边调幅,画出叠加噪声后的调制信号和已调信号的波形及频谱;
设计滤波器,画出幅频响应图;
解调,画出解调后的信号时域波形及频谱,并对比分析。
-Simulation of s
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本资料的功能为:运用数学统计方法和时间序列分析方法对原始振动信号进行分析,获取相应的时域,频域,频域及时间序列模型参数并以此作为特征参数,然后运用距离区分技术进行评估,选取敏感的特征参数作为ART-similarity分类器的输入并进行训练,最后便可识别出设备的性能状态。
基于YU范数对承不同预紧状态的分析,针对进给系统所采集的数据样本事先不知其对应的状态时,则可利用基于YU范数的ART-Similarity监督分类器对其进行诊断分析。针对基于Yu范数ART-Similarity的算法
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HHT(hilbert Huang-transfrom)可以实现同时对信号的时频分析,得到信号的Hilbert时频谱和能量谱,-HHT (hilbert Huang-transfrom) can achieve the same time, the time-frequency analysis, when the signal spectrum and Hilbert energy spectrum
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文章展示了一种新的方法用于功率系统中短期负载预测。提出的方案使用混沌时间序列分析基于确定性混沌去捕捉复杂的负载行为特征。确定性的混沌允许我们重构一个时间序列并决定输入的变量个数。这篇文章描述了混沌时间序列对日间功率系统峰值的分析。确定性混沌的非线性图形通过多层感知器的神经网络得到。提出的方案在一个例子中具体阐述。-This paper presents a new approach to short-term load forecasting in power systems. The
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To fully utilize the character of the bioradar echo signal, autocorrelation analysis, spectral estimation methods and time-frequency analysis are presented in this paper. These methods are employed to deal with no one, single people and multi-people
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本资料主要阐述了 时--频分析:理论与应用的,对喜欢信号处理的朋友帮助很大。-This information focuses primarily on time- frequency analysis: theory and applications, like signal processing, a friend of great help.
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Information of crop phenology is essential for evaluating crop productivity and crop management. Therefore we developed a new
method for remotely determining phenological stages of paddy rice. The method consists of three procedures: (i) prescr ipt
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Time frequency analysis need and allications
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台大的时频分析课件,对要学习时频分析的朋友会有所帮助-the courseware of time-frequency analysis
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两篇时频分析的论文,时频分析技术简述与基于matlab的信号时频分析仿真,可以在编程时参考学习。-Two time-frequency analysis papers, time-frequency analysis technology brief matlab-based signal frequency analysis simulation can learn programming reference.
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DataDemon-时频分析解决方案
随着科技迅速发展,讯号分析处理者面临的是日趋庞大的计算数据量,和越来越复杂的仿真模式。如何缩短开发时间、节省研究经费、又能实现高效能、高弹性的运算平台供后续研究使用便越来越重要。
DynaDx提出DataDemon-时频分析解决方案,以组件组合的设计概念,免除繁杂程序写作方式,提供讯号处理的可视化控制组件,让处理讯号分析的过程就像拼组模型一般,使用者可依据自己的构想去组合出更多元之讯号分析呈现。不再需要从头撰写繁杂的程序代码便能使用各种讯号处理的算法
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Nonstationary signal analysis one of the main topics in the field of machinery fault diagnosis.Time-frequency analysis can identify the signal frequency components,
reveals their time variant features,and is an effective tool to extract machinery h
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时频分析简单例程,WV和短时变换程序.代码简便,保证可以应用-Time frequency analysis of simple routines, WV and short-time transform program
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时频分析代码,其中包括WV分布和短时傅立叶变换。代码简便,保证可以应用-Time frequency analysis of the code, including the WV distribution and the short Fu Liye transform. The code is simple, can guarantee the application
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时频分析;窗函数;基函数;时频分辨能力;地层旋回-Time-frequency analysis window function when frequency resolution capability base function formation cycle
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