Reference receiver enabled digital cancellation of nonlinear out-of-band blocker distortion in wideband receivers

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

Tutkijat

Organisaatiot

  • Tampere University of Technology

Kuvaus

This paper proposes digital cancellation of nonlinear distortion originating from out-of-band blocking carriers and induced by the analog front-end nonlinearities in direct-conversion receivers (RXs). The cancellation is enabled by employing an additional reference RX for capturing these blockers. In addition, cancellation of mirror-frequency interference is targeted. The feed-forward cancellation of nonlinear distortion is blindly adaptive without any a priori information of the received signal or the nonlinearity characteristics of the RX. The performance of this approach is demonstrated with laboratory RF measurements using state-of-the-art base-station hardware. With the distortion cancellation, blocker tolerance of the RX is improved by 7-8 dB.

Yksityiskohdat

AlkuperäiskieliEnglanti
Otsikko2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016 - Proceedings
TilaJulkaistu - 19 huhtikuuta 2017
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaIEEE Global Conf. Signal and Information Processing, GlobalSIP'16 - Greater Washington, Yhdysvallat
Kesto: 7 joulukuuta 20169 joulukuuta 2016

Conference

ConferenceIEEE Global Conf. Signal and Information Processing, GlobalSIP'16
LyhennettäGlobalSIP
MaaYhdysvallat
KaupunkiGreater Washington
Ajanjakso07/12/201609/12/2016

ID: 13324035