4aUW4. Broadband signal detection: Comparison of vertical aperture arrays using adaptive matched-field processing and a horizontal line array using adaptive plane-wave beamforming.

Session: Thursday Morning, December 4


Author: Newell O. Booth
Location: NCCOSC RDTE DIV, Code D881, San Diego, CA 92152-5001
Author: Phil W. Schey
Location: NCCOSC RDTE DIV, Code D881, San Diego, CA 92152-5001
Author: W. S. Hodgkiss
Location: Scripps Inst. of Oceanogr., San Diego, CA 92152-6400

Abstract:

Detection and localization of low spectral-level, broadband signals in the presence of surface interference are described and illustrated with examples obtained in the May 1996 Shallow Water evaluation cell Experiment (SWellEx-96). The experiment was carried out west of Point Loma in 200-m water of complex bathymetry. A 118-m vertical line array (VLA) was deployed next to an identical line array tilted at 45 deg (Tilted VLA). A 240-horizontal line array was also deployed nearby. The detection performance of each of the vertical arrays with adaptive broadband matched-field processing (MFP) is measured and compared with the performance of the horizontal array with adaptive broadband plane-wave beamforming.


ASA 134th Meeting - San Diego CA, December 1997