Velocity and direction estimation by ocean surface current radar using Khatri-Rao product transform

Author

Ryukawa, Takuya ; Yamada, Hiroyoshi ; Yamaguchi, Yoshio ; Hirano, Keizo ; Ito, H.

Author_Institution

Grad. Sch. of Sci. & Technol., Niigata Univ., Niigata, Japan

fYear

2014

fDate

4-6 Aug. 2014

Firstpage

36

Lastpage

37

Abstract

Ocean surface current radar has attracted attention as a system which can be observed ocean phenomenon effectively. In this report, we evaluate the aperture enhancement effect by applying the Khatri-Rao (KR) product array to the Doppler frequency and angular resolution. Since Doppler frequency represents surface current velocity, resolution enhancement leads to estimation accuracy improvement of the velocity. In this paper, we apply the KR product to actual data set of the ocean surface current radar, and estimated surface current velocity.

Keywords

Doppler measurement; direction-of-arrival estimation; oceanographic techniques; velocity measurement; Doppler frequency; Khatri-Rao Product Transform; angular resolution; aperture enhancement effect; direction estimation; estimation accuracy improvement; ocean surface current radar; resolution enhancement; surface current velocity estimation; Doppler effect; Doppler radar; Frequency estimation; Sea surface; Transforms; DOA estimation; Khatri-Rao product; Ocean surface current radar; Resolution Improvement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics (iWEM), 2014 IEEE International Workshop on

Conference_Location

Sapporo

Type

conf

DOI

10.1109/iWEM.2014.6963623

Filename

6963623