Circuits for identifying interferers using compressed-sampling

US11374599B2 · kind B2 · utility

Assignee

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

Inventors

• Tanbir Haque · New York, US
• Peter R. Kinget · Summit, US
• Matthew Bajor · Bayonne, US

Key dates

• Filing date: Oct 23, 2017
• Grant date: Jun 28, 2022
• Expiry date: Oct 1, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/16
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Circuits for identifying interferers using compressed-sampling, comprising: a low noise amplifier (LNA); a passive mixer having a first input coupled to an output of the LNA; a local oscillator (LO) source having an output coupled to a second input of the passive mixer; a low pass filter having an input coupled to an output of the passive mixer; an analog-to-digital converter (ADC) having an input coupled to the output of the low pass filter; a digital baseband (DBB) circuit having an input coupled to an output of the ADC; and a compression-sampling digital-signal-processor (DSP) having an input coupled to the output of the DBB circuit, wherein the compression-sampling DSP is configured to output identifiers of frequency locations of interferers, wherein, in a first mode, the LO source outputs a modulated LO signal that is formed by modulating an LO signal with a pseudo-random sequence.