Angular position measurement system utilizing radio frequency signal

Abstract

Disclosed herein is to an angle-of-departure measurement technology that receives radio frequency signals transmitted from transmitting antennas and measures angular positions from the transmitting antennas with respect to the receiving antenna. A wireless receiver includes an IQ demodulator configured to perform IQ demodulation on signals received from the receiving antenna, a phase sample value can be calculated from a phase value of a ratio of I and Q signals, and a phase difference value between the plurality of transmitting antennas and the receiving antenna can be estimated from a phase sample value. An angular position of the wireless receiver can be calculated from the estimated phase difference value.

Dependencies are inferred from the claim text.