Patent ID: 9612337
Date: 2017-04-04
CPC Classifications: G01S,H01Q,H04B

Claim:
1. A receiver using antenna beam forming for tracking a transmitter signal, the receiver comprising: a beam forming network comprising at least one beam forming channel for weighting each of N signals received from an N-element antenna array with an assigned weighting factor for forming a beam for tracking a transmitter signal of a certain transmitter; and a weighting factor calibrator comprising a calibration receiver, the weighting factor calibrator being configured to calibrate the weighting factor (Wi) assigned to a signal (i) selected from the N signals by determining an average phase difference (ΔΦ) between consecutive samples of the selected signal and consecutive samples of a reference signal selected from the N signals and configured to adapt the weighting factor (Wi) of the selected signal depending on the determined average phase difference (ΔΦ), where (i) is a number between 1 and N, wherein the weighting factor calibrator is configured to select, as the reference signal, a transmitter signal received from a transmitter with an elevation angle such that multipath effects and interferences are substantially avoided.