Narrow-beam systems producing at a receiver a pulse-type envelope signal of the

Official title: Narrow-beam systems producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon; Overlapping broad beam systems defining a narrow zone and producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon

G01S1/54 (Narrow-beam systems producing at a receiver a pulse-type envelope signal of the) appears on 88 US grants and 32 published applications in this corpus.