Clutter depth discrimination using the wavenumber spectrum.
Clutter depth is a key parameter in mid-frequency active sonar systems to discriminate between sources of clutter and targets of interest. A method is needed to remotely discriminate clutter depth by information contained in the backscattered signal-without a priori knowledge of that depth. Presented here is an efficient approach for clutter depth estimation using the structure in the wavenumber spectrum. Based on numerical simulations for a simple test case in a shallow water waveguide, this technique demonstrates the potential capability to discriminate between a clutter source in the water column vs one on the seabed.
Department of Oceanography, Naval Postgraduate School, 833 Dyer Road, Monterey, California 93943 dbreeder@nps.edu.
D
D
Benjamin Reeder
D003198:Computer Simulation; D005583:Fourier Analysis; D019015:Geologic Sediments; D008962:Models, Theoretical; D009038:Motion; D009716:Numerical Analysis, Computer-Assisted; D009792:Oceans and Seas; D011312:Pressure; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors; D014465:Ultrasonics / Q000379:methods*; D014867:Water
D014867:Water