The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2006
Filed:
Oct. 31, 2003
Takeshi Matsuoka, Koganei, JP;
Seiho Uratsuka, Koganei, JP;
Makoto Satake, Koganei, JP;
Tatsuharu Kobayashi, Koganei, JP;
Akitsugu Nadai, Koganei, JP;
Toshihiko Umehara, Koganei, JP;
Hideo Maeno, Koganei, JP;
Hiroyuki Wakabayashi, Tokyo, JP;
Yasushi Fukamachi, Sapporo, JP;
Fumihiko Nishio, Chiba, JP;
Takeshi Matsuoka, Koganei, JP;
Seiho Uratsuka, Koganei, JP;
Makoto Satake, Koganei, JP;
Tatsuharu Kobayashi, Koganei, JP;
Akitsugu Nadai, Koganei, JP;
Toshihiko Umehara, Koganei, JP;
Hideo Maeno, Koganei, JP;
Hiroyuki Wakabayashi, Tokyo, JP;
Yasushi Fukamachi, Sapporo, JP;
Fumihiko Nishio, Chiba, JP;
Abstract
An ice thickness/drifting velocity observation of sea ice by using an ice thickness measurement sonar and a current meter moored into the sea and a sea ice observation by a high-resolution airborne SAR are synchronously performed, a correlation between a draft profile of sea ice passing over the sonar and an SAR backscattering coefficient profile is calculated, and an ice draft of desired sea ice is calculated from the relational expression and an SAR backscattering coefficient. As the SAR backscattering coefficient, a backscattering coefficient of L-band HV polarization may be used. A backscattering coefficient of X-band VV polarization is preferably used as the SAR backscattering coefficient to detect thin ice having a thickness of not more than approximately 10 cm.