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:
May. 02, 2017
Filed:
Jan. 15, 2013
Raytheon Canada Limited, Ottawa, CA;
Jian Wang, Waterloo, CA;
Anthony M. Ponsford, Ottawa, CA;
Emily Wang, Waterloo, CA;
Rick McKerracher, Waterloo, CA;
Raytheon Canada Limited, Ottawa, Ontario, CA;
Abstract
A high frequency surface wave radar (HFSWR) system with improved performance. Two or more transmitters including separate transmitting antennas () are used to improve the performance of the HFSWR over the performance of a comparable system with a single transmitter. In one embodiment, two transmitters are used, and configured to transmit pulses alternately, with a time interval of at least a round-trip travel time corresponding to a maximum target range between any pair of transmitted pulses. A physical receiving antenna array () includes a plurality of receiving antenna elements (), and is connected to receiver circuitry configured to distinguish returns corresponding to pulses emitted by the different transmitters. The returns are concatenated in the receiver circuitry to achieve improved resolution.