Conical-scan beacons transmitting signals which indicate at a mobile receiver any displacement

Official title: Conical-scan beacons transmitting signals which indicate at a mobile receiver any displacement of the receiver from the conical-scan axis, e.g. for "beam-riding" missile control

G01S1/42 (Conical-scan beacons transmitting signals which indicate at a mobile receiver any displacement) appears on 6 US grants and 2 published applications in this corpus.