spectral order 光谱级 ; 光谱序
The lung sound feature were extracted by using higher-order spectral technique.
用高阶谱分析方法，对肺音信号进行了特征提取。
The estimation methods for higher order spectral are efficient in estimating time delay in colored noise.
高阶谱估计方法是用于色噪声背景下时间延迟估计的一个十分有效的方法。
The new method overcame the deficiency of artificially selecting the truncated functions in the classical low order spectral model.
克服了应用低阶谱模式研究物理现象时选取截断函数时的主观任意性。
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