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:
Jan. 25, 1983
Filed:
Jul. 02, 1980
George A Lucchi, Granada Hills, CA (US);
Sperry Corporation, New York, NY (US);
Abstract
An echo ranging weather radar system in which the bandwidth B of the radar receiver is made roughly equal to the bandwidth of the frequency spectrum of at least some expected weather echoes. In one embodiment, B T.sub.R is made equal to .alpha. during a time interval corresponding to a range increment at maximum range and during an earlier period corresponding to lower ranges, is varied inversely with range, where T.sub.R is the duration of an echo pulse which would be produced by a target of reference size, and .alpha. is a constant such as 1.2. In another embodiment, B is varied according to the duration T of actually received echo signals so as to set BT.congruent..alpha. during each echo reception interval, for different values of T. The gain of the receiver also may be varied with time.