Automatic shipboard collision avoidance system
Automatic signal tracking circuit
Automatic synchronization for receivers of a navigational system
Automatic t.sub.0 control for use in airborne DME system
Automatic target detector
Automatic target detector
Automatic thresholding and reference circuit
Automatic tracking methods and apparatus
Automatic tracking system for antenna
Automatic transponder
Automatical signalling apparatus
Automatically centered pulsed radar receiver
Automobile active receiving antenna
Automotive antenna system
Automotive radar monitor system
Autonomous, check-pointing, navigational system for an airborne
Azimuth correlator for real-time synthetic aperture radar image