Circuits and methods for using compressive sampling to detect direction of arrival of a signal of interest

US11402458B2 · kind B2 · utility

Assignee

• The Trustees of Columbia University in the City of New York · US

Inventors

• Matthew Bajor · Bayonne, US
• John W. Wright · Los Altos, US
• Tanbir Haque · New York, US
• Peter R. Kinget · Summit, US

Key dates

• Filing date: May 22, 2019
• Grant date: Aug 2, 2022
• Expiry date: Jul 4, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B7/086
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Mechanisms compressive sampling to detect direction of arrival (DoA) of a signal of interest (SoI), comprising: in each of a plurality of receiver paths, receiving the SoI and producing a received signal using an antenna; and using a modulator to: receive a modulator input signal (MIS) based on the received signal produced by the antenna in the path; modulate the MIS at multiple points in time (MPIT) based on different ones of a plurality of pseudo-random numbers; and produce a plurality of modulated output signals in response to the modulating of the MIS at the MPIT; summing across the receiver paths the one of the modulated output signals produced by each of the receiver paths for each of the MPIT, to produce a plurality of sum signals each corresponding to one of the MPIT; and performing a compressed sensing recovery algorithm to recover the DoA of the SoI.