Sparse signal decomposition Order analysis Gear Fault diagnosis;
稀疏信号分解；阶比分析；齿轮；故障诊断；
The invention discloses a gear fault diagnosis method based on multiscale linear frequency modulation-based sparse signal decomposition.
本发明公开了一种基于多尺度线调频基稀疏信号分解的齿轮故障诊断方法。
An envelope order spectrum based on multi-scale chirplet and sparse signal decomposition was proposed and applied to the fault diagnosis of gearboxes with rotating speed fluctuation.
提出了基于线调频基稀疏信号分解的包络阶次谱方法，并将其应用于变速齿轮箱故障诊断之中。
In the third chapter, a measure of frequency estimation based on signal sparse decomposition is introduced.
在第三章中，介绍了基于信号稀疏分解的频率估计方法。
Otherwise, signal sparse denotation and decomposition can not be practical, it can only remain in the searching phases.
为促进信号稀疏表示、稀疏分解的研究与应用，研究其快速算法是十分必要的。
We will improve the speed of seismic signal sparse decomposition in the case of that the quality of the reconstructed signal is ensured.
因此本论文将对蚁群算法和蒙特卡罗方法进行研究，在保证重建信号质量的前提下，提高地震信号稀疏分解的速度。
This paper focuses on the sparse decomposition of audio signal, and resolves the problem of large storage and huge computational complexity which is caused by the long signal.
本文着重于语音信号的稀疏分解，解决因为信号的长度大而引起的计算量大、存储量大的问题。
In order to improve the speed of sparse decomposition of seismic signal, scholars have proposed some fast algorithm, and the Ant Colony algorithm is one of them.
为了提高地震信号的稀疏分解速度，国内外学者已经提出了一些快速算法，蚁群算法就是其中的一种。
Secondly, the jamming suppression and the signal reconstruction are achieved with the sparse decomposition method and BP(Basis Pursuit)algorithm.
然后利用稀疏分解方法和BP（BasisPursuit）算法实现干扰抑制和有用信号的重构。
Finally, the novel signal processing method - sparse decomposition is applied to our problem.
最后将一种新的信号处理方法——稀疏分解应用于多导联心电信号的压缩。
Finally, the novel signal processing method - sparse decomposition is applied to our problem.
最后将一种新的信号处理方法——稀疏分解应用于多导联心电信号的压缩。
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