Patent ID: 7881684
Filing Date: 2011-02-01
Classification: G01S,H04J

Abstract:
1. A receiver for receiving a transmission signal from a transmitter, comprising: a reception unit for receiving a first transmission signal and a second transmission signal; an A/D conversion unit which includes an A/D converter for converting the first transmission signal and the second transmission signal from an analog form to a digital form and a sampling clock generator unit for generating sampling clocks determining timings at which the A/D converter performs analog-to-digital conversion; a phase shift unit for outputting control signals which shift a phase of the sampling clocks; a synchronization trap unit for matching phases of the first transmission signal and the second transmission signal with the phase of the sampling clocks by using the control signals; a synchronization tracking unit for adjusting the phase of the sampling clocks to maintain synchronization of the first transmission signal and the second transmission signal; and a time difference measurement unit for counting respective numbers of the sampling clocks and the control signals and measuring a reception time difference between the first transmission signal and the second transmission signal using the counted numbers of the sampling clocks and the control signals.