EHF ANTENNA NULLING MEASUREMENTS FOR FREQUENCY-HOPPED SIGNALS

Authors
  1. Yen, J.L.
  2. Kremer, P.
Corporate Authors
Toronto Univ, Toronto ONT (CAN);Defence Research Establishment Ottawa, Ottawa ONT (CAN);Communications Research Centre, Ottawa ONT (CAN)
Abstract
EHF Controlled-Beam Antennas use a two-band adaptive array for receiving frequency hopped signals. The system relies on the almost fixed locations of jammers as seen from a geostationary satellite thereby allowing the use of slow acting broad band nulling to be followed by fast acting narrow band nulling in the dehopped signal. The objective of the Project is to evaluate the anti-jamming performance of such a system in the presence of multiple jammers in different locations and emitting different jamming signals. In addition, performance degradation due to hardware imperfections is to be investigated. The antenna configuration chosen is an offset dual reflector system with a phase array feed. The objective of the Present Contract is to provide jammer and frequency hopped sources making use of this antenna test bed. A broad-band nulling system is to be implemented and measurements of its performance to be carried out.
Date of publication
15 Jul 1985
Number of Pages
13
DSTKIM No
86-03228
CANDIS No
97920
Format(s):
Hardcopy;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: