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Digital full-band linearization of wideband direct-conversion receiver for radar and communications applications

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publication2015 49th Asilomar Conference on Signals, Systems and Computers
PublisherIEEE COMPUTER SOCIETY PRESS
Pages1361-1368
Number of pages8
ISBN (Print)9781467385763
DOIs
Publication statusPublished - 26 Feb 2016
Publication typeA4 Article in a conference publication
EventAsilomar Conference on Signals, Systems and Computers -
Duration: 1 Jan 1900 → …

Publication series

Name
ISSN (Electronic)1058-6393

Conference

ConferenceAsilomar Conference on Signals, Systems and Computers
Period1/01/00 → …

Abstract

This paper proposes a fully digital post-processing solution for cancelling nonlinear distortion and mirror-frequency interference in wideband direct-conversion receivers (DCRs). Favorable cost, integrability, and power efficiency have made DCRs a popular choice in communication systems. It is also an emerging trend in radar systems since digital post-processing enables sufficient performance. The proposed method cancels the most essential distortion adaptively during normal receiver operation without any prior information. Improved cancellation performance compared to the state-of-the-art is achieved considering inband and neighboring band distortion induced by the strong received signals. This is verified and demonstrated with extensive simulations and true RF hardware measurements.

Keywords

  • Direct-conversion receiver, interference cancellation, nonlinear distortion, nonlinearity modeling, radar

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