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1. (WO2017019571) ANGULAR VELOCITY SENSING USING ARRAYS OF ANTENNAS

Pub. No.:    WO/2017/019571    International Application No.:    PCT/US2016/043766
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Sat Jul 23 01:59:59 CEST 2016
IPC: G01S 13/58
G01S 3/46
G01S 7/40
G01P 3/00
Applicants: QUALCOMM INCORPORATED
Inventors: KIM, Sanghoek
BENNETT, Stephen
HO, Keangpo Ricky
CHENG, Shi
EMAMI, Sohrab
YANG, Ou
Title: ANGULAR VELOCITY SENSING USING ARRAYS OF ANTENNAS
Abstract:
Various techniques are provided to efficiently detect the position and angular velocity of an object relative to a compact radar system including a transmitter antenna array and a receiver antenna array. In one example, a method includes repeatedly scanning a transmitter antenna array and a receiver antenna array of an object sensing system through a plurality of designated transmitter and receiver channels over a period of time to generate a time series of measured channel responses corresponding to each one of the designated channels, determining a time series of directional vectors to or from an object scanned by at least one of the designated channels, and/or a corresponding time series of average phase differences, based, at least in part, on the time series of measured channel responses, and determining an angular velocity of the object from the time series of directional vectors and/or the corresponding time series of average phase differences.