Wavevector-Frequency Spectral Estimation: A Review of Conventional Signal Processing Techniques
Abstract
This document consists of the text and slides of an invited paper presented at The 116th Meeting of the Acoustical Society of America held in Honolulu, Hawaii, during 15-18 november 1988. The following abstract was published in the program for the 116th Meeting (J. Acoust. Soc. Am., Supplement 1, Vol. 84, Fall 1988). Signal processing techniques for estimating wavevector- frequency spectra of space-time fields from measured data parallel those developed by electrical engineers for estimating frequency spectra from measured samples of temporal fields. This paper reviews a conventional technique for estimating the wavevector frequency spectrum form samples of a space-time field measured through an array of sensors. The mean value of this spectral estimate can be related to the true spectrum of the space-time field and the wavevector and frequency responses associated with the various components of the signal processing. This relationship permits, under certain conditions, the Quality of the spectral estimate to be assessed. The dependence of the quality of the spectral estimate on the various components of the signal processing is discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 14, 1989
- Accession Number
- ADA205817
Entities
People
- Wayne A. Strawderman
Organizations
- Naval Underwater Systems Center