Patent ID: 8659476
Filing Date: 2014-02-25
Classification: G01S

Abstract:
1. An apparatus for determining a distance and an orientation of a movable object, comprising: at least one transmitter attached to the object, the at least one transmitter emitting a signal with a defined frequency and having an antenna with a known linear polarization plane; at least one receiver configured to receive the signal, the at least one receiver comprising a left-hand circularly polarized antenna and a right-hand circularly polarized antenna; and an evaluation device coupled to the at least one receiver configured to determine phase values of the signal corresponding to signal components received by the left-hand circularly polarized antenna and the right-hand circularly polarized antenna and to calculate the distance and the orientation with respect to a preset point based on the phase values; and wherein the at least one transmitter and the at least one receiver are coupled via at least one of a phase-locked coupling and a synchronization.