MULTIPLE SOURCE JAMMING SIGNAL CANCELLATION SYSTEM
Assignee
Filed
Jun 16, 1975
Granted
Aug 8, 2000
Location
MA US
Abstract
Suppression of jamming from multiple sources is achieved by detecting the AM difference frequency produced by the beating of a desired signal and the smaller of the multiple jamming signal with the stronger jamming signal and applying same to one input of a single-sideband modulator while simultaneously applying the received signal (containing both the desired signal and the jamming signals) to the other input to the single-sideband modulator whereby the larger jamming signal is suppressed. The sum and difference outputs of the single-sideband modulator containing the upper and lower sidebands, respectively, of the desired signal plus the smaller jamming signal are each processed by a jamming cancellation circuit to suppress the smaller jamming signal and their outputs combined to receive the desired signal.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jan 28, 1982
Rescinded
Sep 11, 1996
Duration
14 years, 7 months
Inventor
- 1MARTIN R. RICHMOND
Record Details
- Patent number
- US 6100838
- Application
- 00558949
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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