Hinich, Melvin J.2015-05-262015-05-261981-03Hinich, M. J. (1981). Frequency-wave number array processing. Journal of the Acoustical Society of America, 69(3), 732-737. doi: 10.1121/1.3855720001-4966http://hdl.handle.net/10919/52604Most array signal processing systems use delay-and-sum beamforming to estimate source bearings. This paper demonstrates the close relationship between beamforming and frequency-wavenumber spectrum analysis. The latter approach has computational advantages over beamforming when the noise is spatially correlated. The wavenumber approach is used to derive the array response of a general linear or planar array to plane wave signals. The statistical properties of the maximum-likelihood estimators of source bearing and amplitude are presented for an array with many elements. Optimal array design is also discussed.6 pagesapplication/pdfen-USIn CopyrightAcoustic beamformingFrequency analyzersSignal processingSpatial analysisSpectrum analysisArticle - Refereedhttp://scitation.aip.org/content/asa/journal/jasa/69/3/10.1121/1.385572https://doi.org/10.1121/1.385572