Results 171 to 180 of about 1,225 (190)

Partial source discrimination in near field acoustic holography

Applied Acoustics, 1999
Abstract Decomposition techniques based on principal component analysis (PCA) and partial coherent output power (PCOP) analysis are applied to scanning near field acoustic holography (NAH) in order to identify partial sources. Where location of partial sources is uncertain, inaccessible, or the underlying physical process is not well understood ...
openaire   +1 more source

Near-Field Acoustic Holography of Cyclostationary Sound Field

Advanced Materials Research, 2013
The radiated sound field of rotating machinery or reciprocating machinery has a significant periodically time-variant nature. This is a kind of non-stationary sound field and called cyclostationary sound field. In the conventional planar near-field acoustic holography(PNAH), this kind of sound field is treated as stationary field, so the information ...
openaire   +1 more source

Development of Near-Field Acoustic Holography

Applied Physics, 2018
openaire   +1 more source

A global rotor noise control method based on near-field acoustic holography and sound field reproduction

Aerospace Science and Technology, 2022
Mengxue Shao, Xice Xu
exaly  

Application of a near-field acoustic holography-based diagnosis technique in gearbox fault diagnosis

JVC/Journal of Vibration and Control, 2013
Wenbo Lu, Weikang Jiang, Junjian Hou
exaly  

Near-field acoustic holography with three-dimensional scanning measurements

Journal of Sound and Vibration, 2019
Chuan-Xing Bi, Chang-Jun Zheng, Zhong-Wei Luo   +2 more
exaly  

Near-field acoustical holography in cylindrical spaces

The Journal of the Acoustical Society of America, 1993
openaire   +1 more source

Near-field acoustic holography using sparse regularization and compressive sampling principles

Journal of the Acoustical Society of America, 2012
Laurent Daudet, François Ollivier, Nancy Bertin   +2 more
exaly  

Statistically optimized near field acoustic holography using an array of pressure-velocity probes

Journal of the Acoustical Society of America, 2007
Finn Jacobsen, Jacobsen Finn
exaly  

Regularization for improving the deconvolution in real-time near-field acoustic holography

Journal of the Acoustical Society of America, 2011
Jean-Claude Pascal, Thomas Jean-Hugh
exaly