Non-uniform azimuth image shift caused by the pitching motion of ships observed in Radarsat images

Author

Ouchi, Kazuo ; Iehara, Masato ; Takami, Isao ; Morimura, Koichi ; Kumano, Shintaro

Author_Institution

Dept. of Environ. Syst. Eng., Kochi Univ. of Technol., Japan

Volume

4

fYear

2001

fDate

2001

Firstpage

1815

Abstract

Non-uniform azimuth image shift of a rigid body is observed, for the first time, in the Radarsat images of moving ships in pitching motion. The pitching velocity is estimated from the SAR image of a known ship, and compared with that computed using a numerical model with the meteorological and ship´s data; further comparison is made with the wave orbital velocity. The results are shown to be all in excellent agreement. Comparisons are also made between the pitching velocities of unknown ships with the wave orbital velocity, and a reasonable agreement is obtained

Keywords

radar imaging; ships; spaceborne radar; synthetic aperture radar; Radarsat images; SAR image; nonuniform azimuth image shift; pitching motion; pitching velocity; rigid body; ships; wave orbital velocity; Acceleration; Azimuth; Electronics industry; Industrial electronics; Layout; Marine vehicles; Numerical models; Ocean waves; Radar scattering; Shipbuilding industry;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-7031-7

Type

conf

DOI

10.1109/IGARSS.2001.977081

Filename

977081