GCC-PHAT-ργ weighting Gaussian mutation Leaky LMS Markov transition field SPB method Scholte wave detection acoustic pressure field acoustic ranging acoustic thermometry adaptive parameter bearing fault detection bearing signals bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology cost-reference particle filter deconvolved beamforming delay estimation diagnosis of compound faults digital lock-in filtering direction of arrival estimation electrical conduit environmental noise fault diagnosis feature extraction fractional Fourier transform generalized cross-correlation hierarchical slope entropy improved grey wolf algorithm intelligent resample least mean squares