TROPOSCATTER DIVERSITY SIDELOBE JAMMING SUPPRESSOR
Assignee
Filed
Nov 29, 1979
Granted
Jan 9, 1990
Location
CABRIDGE MA US
Abstract
Sidelobe jamming in dual diversity troposcatter link receivers is effectively suppressed by providing an auxilliary low power antenna, the output of which is differenced from the high power main antenna signals prior to processing in the receivers's dual diversity demodulator. The auxilliary antenna power is substantially equal to the sidelobe power of the main antennas. The auxilliary antenna receives jamming power that is comparable to the jamming power received by the main antennas. However, it receives much lower desired signal power. Differencing of the signals therefore, cancels jamming power with minimal effect on the desired signals.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Apr 1, 1982
Rescinded
Jul 31, 1989
Duration
7 years, 4 months
Inventor
- 1STEEN A. PARL
Record Details
- Patent number
- US 4893128
- Application
- 06097589
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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