Title:
RF (INCLUDING GNSS ) SIGNAL INTERFERENCE MITIGATION SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2014/171975
Kind Code:
A3
Abstract:
An RF (e.g., GNSS) interference mitigation system and method uses a switchable bank of filters for selectively blocking signals in predetermined bandwidths based on detecting strong, interfering signals with an interference detection circuit including a sniffer antenna. A low- strength RF (e.g., GNSS) system can be combined with a spectrally-close high-strength, telecommunications receiver system for cooperative control. Alternatively, an RF receiver can detect tones, changes in DC bias or level changes to activate a filter selection switch.
Inventors:
BADKE BRADLEY P (US)
WHITEHEAD MICHAEL L (US)
FELLER WALTER J (CA)
DURNAN GREGORY J (US)
WHITEHEAD MICHAEL L (US)
FELLER WALTER J (CA)
DURNAN GREGORY J (US)
Application Number:
PCT/US2013/073180
Publication Date:
December 31, 2014
Filing Date:
December 04, 2013
Export Citation:
Assignee:
HEMISPHERE GNSS INC (US)
International Classes:
H03F3/20
Foreign References:
| US20060030287A1 | 2006-02-09 | |||
| US20100048156A1 | 2010-02-25 | |||
| US20090207764A1 | 2009-08-20 | |||
| US20100157860A1 | 2010-06-24 |
Attorney, Agent or Firm:
GRESHAM, Lowell W. (Olsen & Watts LLP,18E. University Drive, Suite 10, Mesa AZ, US)
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