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. 20, 1996
Filed:
Mar. 09, 1995
Toshihiro Sezai, Tokyo, JP;
National Space Development Agency of Japan, Tokyo, JP;
Abstract
In a method of designing the transmission power of a synthetic aperture radar installed on a flight object such as an artificial satellite, the transmission power is designed such that, in applying radar equation P.sub.r =P.sub.t .multidot..sigma..multidot.A.sub.p.sup.2 /(4.pi..lambda..sup.2 R.sup.4) [P.sub.t :transmission power (W), .sigma.: radar scattering cross section (m.sup.2), A.sub.p :antenna area (m.sup.2), R: distance to the object to be observed (m), .lambda.: wavelength of radio wave (m)] for setting transmission power P.sub.r so as to satisfy the conditions required for the radar, the radar scattering cross section .sigma. is set to .sigma.=.sigma..sup.0 .multidot.S.sup.2 .multidot.4.pi./ .lambda..sup.2 [.sigma..sup.0 :scattering coefficient, S:area of irradiated domain (m.sup.2)].