Virginia Tech. Department of EconomicsHinich, Melvin J.Rule, William2015-05-262015-05-261975Hinich, M. J. & Rule, W. (1975). Bearing estimation using a large towed array. Journal of the Acoustical Society of America, 58(5), 1023-1029. doi: 10.1121/1.3807610001-4966http://hdl.handle.net/10919/52612When a towed array of hydrophones is significantly nonlinear due to bending, ordinary linear array beamforming gives a biased estimate of the true source bearing. By processing the array as a sequence of smaller aperture subarrays and then computing the mean of the subarray bearings, the variation due to bending is reduced and a reasonably precise estimate is obtained if the average bending angle with respect to the nominal axis is small. The median and mean subarray bearings are analyzed for a theoreticalstatistical model and are tested using artificial data for various sinusoidal array geometries.7 pagesapplication/pdfen-USIn CopyrightStatistical analysisData analysisMicrophonesSequence analysisStatistical model calculationsArticle - Refereedhttp://scitation.aip.org/content/asa/journal/jasa/58/5/10.1121/1.380761https://doi.org/10.1121/1.380761