US 10,502,809 B2 · Reconfigurable analog-to-digital conversion sampling of antennas for phase interferometry

Abstract

All of a plurality of analog-to-digital converters (ADCs) each operating in a first mode of operation within a spectrum of interest sample a signal received at one of a plurality of antennas, with the outputs of the ADCs processed to detect signals of interest based on a threshold. For each of the plurality of antennas, a corresponding one of the plurality of ADCs operating in a second mode of operation samples signals received at the one of the antennas such that signals received are sampled at all of the plurality of antennas, with the outputs of the ADCs processed to calculate an angle of arrival for at least one detected signal of interest using phase interferometry. Bandpass or non-uniform under-sampling may be employed to sample all of the antennas at a relatively low data rate.

Claims20

Dependent claims

A method, comprising:

sampling a signal received at a single antenna of a plurality of antennas using all of a plurality of analog-to-digital converters (ADCs) each operating in a first mode of operation within a spectrum of interest;
processing outputs of the ADCs corresponding to the sampling of the signal received at the single antenna to detect at least one signal of interest based on a threshold;
sampling signals received at the plurality of antennas using, for each antenna of the plurality of antennas, a corresponding ADC of the plurality of ADCs operating in a second mode of operation within the spectrum of interest;
and
processing outputs of the ADCs corresponding to the sampling of the signals received at the plurality of antennas to calculate an angle of arrival for the at least one detected signal of interest using phase interferometry.

2 more elements

Dependencies are inferred from the claim text.

Reconfigurable analog-to-digital conversion sampling of antennas for phase interferometry

Life of this patent

Reconfigurable analog-to-digital conversion sampling of antennas for phase interferometry

Life of this patent

Abstract

Claims20