Research Article
Separation Method of Impulsive Fault Component for Gasoline Engine Based on Acoustic Signal Analysis
Figure 10
Acquisition principle of Ij. f(n(j−1)qN+r + 1) corresponding to (n(j−1)qN+r + 1), which is used to assess the ((j − 1)qN + r)th rising edge, is selected as the first point of Ij, and f(njqN+r) corresponding to (njqN+r), which is used to judge the (jqN + r)th rising edge, is set as the last point of Ij.