Ocean wave observation by GPS signal

Author

Cui, Jian ; Kouguchi, Nobuyoshi

Author_Institution

Grad. Sch. of Maritime Sci., Kobe Univ., Kobe, Japan

fYear

2011

fDate

6-9 June 2011

Firstpage

1

Lastpage

7

Abstract

A wave observation system by GPS signal is proposed to measure wave information, such as wavelength and wave direction. In this system an arrayed GPS antenna is used to receive multi-path GPS signals reflected from sea surface and software GPS receiver is designed to process composite signal to extract wave information. According to the composite signal, the indispensible performance and characteristics of the arrayed GPS antenna and RF front-end has been analyzed by computer simulation. Autocorrelation function and Teager-Kaiser energy operator are utilized as core functions of software GPS receiver. The system has been verified that the arrayed GPS antenna can receive multi-path signals from specified measurement area and software GPS receiver can process signal very well and estimate relative time delays of multipath signals.

Keywords

Global Positioning System; antenna arrays; geophysical signal processing; hydrological techniques; GPS antenna array; RF front-end; Teager-Kaiser energy operator; autocorrelation function; multipath GPS signals; ocean wave observation; software GPS receiver; time delays; wave direction; wave information extraction; wavelength; Antenna arrays; Global Positioning System; Receiving antennas; Sea measurements; Sea surface; Software;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS, 2011 IEEE - Spain

Conference_Location

Santander

Print_ISBN

978-1-4577-0086-6

Type

conf

DOI

10.1109/Oceans-Spain.2011.6003550

Filename

6003550