Range estimation and depth discrimination of multiple sources in noisy shallow waters without knowing sound speed profiles

A bottom-mounted horizontal array is proposed for range estimation and dept h discrimination of multiple sources where the SSP information of the envir onment is not required. The two key elements are, first, to use the horizon tal array for deriving modal wave numbers and composite modal amplitudes ex cited by multiple sources in multiple frequencies and, second, to utilize t he frequency samples for obtaining unknown source ranges and discriminating source depths. (C) 2000 Acoustical Society of America. [S0001-4966(00)0151 02-X].