H - Electricity – 04 – K
Patent
H - Electricity
04
K
343/103
H04K 3/00 (2006.01)
Patent
CA 1160722
Abstract of the Disclosure A radio receiving system partially overcomes jamming and other interference by receiving on a narrow selected frequency which is rapidly changed, i.e., fast frequency hopping (FFH). The system includes a broadband receiving antenna array and a steer- able null antenna processor which creates an antenna null pat-tern. A control device connected to the (FFH) radio connects a portion of the intermediate frequency (IF) of the radio to a bank of three narrowband IF filters in the control device. The output of the first IF filter, at the IF frequency, provides the signal (S) level and the outputs of the second and third filters, which are offset from the IF frequency, are summed to provide the inter- ference (I) level; the I and S levels being used to control the antenna processor means.
395697
Aspila Kalevi P.
United States (government Of The) As Represented By The Secretary Of Th E. Arm
LandOfFree
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