doc 关键词 ： 过完备字典；稀疏表示；正交匹配追踪；正则化 [gap=1126]Key words： over-complete dictionary； sparse representation； orthogonal matching pursuit； regularized ...
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Aiming at the problem of the large over-complete dictionary storage, a new method is proposed based on signal set partitioning method.
针对信号稀疏分解中过完备原子库存储量大的问题，本文提出了利用信号集合划分研究过完备原子库的新方法。
To reduce this high computational complexity, a new method is proposed to deal with the over-complete dictionary based on the signal set partitioning method.
为此，本文提出了利用信号集合划分研究过完备原子库的新方法。
Firstly, seismic signal is spectrum analyzed. After that, when the over-complete dictionary of atoms is being created, the selection of the frequency parameters refers to the spectrum analysis.
首先对原始地震信号进行频谱分析，然后按其幅度谱对频率参数进行非均匀离散化。
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