However, the complex calculation because of solving NP problem has become the bottleneck that restricts the application of the signal sparse decomposition.
这个缺点是制约信号稀疏分解广泛应用的瓶颈。
参考来源 - 基于稀疏分解的心电信号特征波检测及心电数据压缩Such function can provide the essential preliminary knowledge for ultrasonic signal sparse decomposition and sparse compression.
为超声信号的稀疏分解与稀疏压缩提供了必要的预备知识。
参考来源 - 管道缺陷检测中超声信号稀疏解卷积及稀疏压缩方法的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
在第三章中，介绍了基于信号稀疏分解的频率估计方法。
In the third chapter, a measure of frequency estimation based on signal sparse decomposition is introduced.
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.
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。
Otherwise, signal sparse denotation and decomposition can not be practical, it can only remain in the searching phases.
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