NOISE ROBUST TIME OF FLIGHT ESTIMATION FOR ACOUSTIC PYROMETRY
摘要
An acoustic signal traversing a hot gas is sampled at a source and a receiver and is represented in overlapping windows that maximize useable signal content. Samples in each window are processed to represented in different sparsified bins in the frequency domain. Determining a signal delay between the source and the receiver from a summation of maximum smoothed coherence transform cross-correlation values of different data windows wherein a sparseness of a mean smoothed coherence transform cross-correlation of windows is maximized. Determining a set of delay times wherein outliers are deleted to estimate a time of flight from which a temperature of the hot gas is calculated.
申请公布号
EP2893312(A2)
申请公布日期
2015.07.15
申请号
EP20130759379
申请日期
2013.08.26
申请人
SIEMENS CORPORATION;SIEMENS ENERGY, INC.
发明人
CLAUSSEN, HEIKO;ROSCA, JUSTINIAN;YAN, MICHELLE XIAOHONG;DESILVA, UPUL P.;ULERICH, NANCY H.