A new estimation technique for near-shore bathymetric measurements

Author

Pillai, S. Radhakrishnan ; Oh, Hyun Seok

Author_Institution

Adv. Dev., Zetron Inc., Redmond, WA, USA

Volume

5

fYear

1999

fDate

1999

Firstpage

2805

Abstract

A new technique for depth estimation in airborne laser bathymetry is proposed. The technique involves the transmission of a nonlinear frequency-modulated signal, the detection of the signal reflected by the ocean, and its processing using an appropriate matched filter. On the basis of this technique, a receiver can be constructed that offers improved resolution between the signals reflected by the surface and bottom of the ocean which translates into improved accuracy of depth measurement

Keywords

airborne radar; bathymetry; filtering theory; frequency modulation; matched filters; measurement by laser beam; optical radar; parameter estimation; radar resolution; spatial variables measurement; airborne laser bathymetry; depth estimation; depth measurement accuracy; matched filter; near-shore bathymetric measurements; nonlinear frequency-modulated signal transmission; ocean bottom; ocean reflected signal detection; ocean surface; receiver; resolution; signal processing; Bandwidth; Chirp; Frequency; Matched filters; Oceanographic techniques; Oceans; Sea measurements; Sea surface; Signal processing; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on

Conference_Location

Phoenix, AZ

ISSN

1520-6149

Print_ISBN

0-7803-5041-3

Type

conf

DOI

10.1109/ICASSP.1999.761345

Filename

761345