Calculation of identifying noise source based on partial coherence analysis 偏相干分析識(shí)別噪聲源的計(jì)算
Partial coherence function 部分相干函數(shù)
Identification of loader cab ' s noise sources based on partial coherence analysis method 基于偏相干分析法的裝載機(jī)司機(jī)室噪聲源識(shí)別
Abstract : in this paper ? for real marine underwater noise data by using synchronous acquisition of points ? inputs - output covariance matrix is obtained by filtering ? compensating delay and crosscorrelation . then the contribution of inputs to output in network sense and partial coherence as well as other useful quantities are calculated from the inputs - output covariance matrix 文摘:本文對(duì)多點(diǎn)同步測(cè)量方法記錄的艦艇噪聲數(shù)據(jù),采取在時(shí)域上作濾波、時(shí)延補(bǔ)償和互相關(guān)得到輸入輸出協(xié)方差矩陣,然后從輸入輸出協(xié)方差矩陣計(jì)算在網(wǎng)絡(luò)意義和偏相干意義下輸入對(duì)輸出的貢獻(xiàn)以及其它有用的量。