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:
Jul. 16, 1996
Filed:
Jul. 18, 1995
Kouichi Eguchi, Mitaka, JP;
Japan Radio Co., Ltd., Tokyo, JP;
Abstract
An array antenna system is provided with a function for tracking a target. The system captures the target by first carrying out search control immediately after a power supply is turned on. After capturing the target, the system performs tracking control using a beam switch controller about an azimuth. An output of a rate sensor is filtered by a high-pass filter and then reflected on a tracking signal for the tracking control. It is possible to keep an angular rate of the array antenna around an azimuth axis to nearly 0 even while no signals can be received from the target. Even when signals can be received from the target, a control system is stabilized by feedback of the angular rate.