Digital Full-Band Linearization of Wideband Direct-Conversion Receiver for Radar and Communications Applications

被引：0

作者：

Allen, Markus ^{[1
]}

Marttila, Jaakko ^{[1
]}

Valkama, Mikko ^{[1
]}

Singh, Simran ^{[2
]}

Epp, Michael ^{[2
]}

Schlecker, Wolfgang ^{[2
]}

机构：

[1] Tampere Univ Technol, Dept Elect & Commun Engn, POB 692, FI-33101 Tampere, Finland

[2] Airbus Def & Space GmbH, Airbus Grp, D-89077 Ulm, Germany

来源：

2015 49TH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS | 2015年

关键词：

Direct-conversion receiver; interference cancellation; nonlinearity modeling; nonlinear distortion; radar; INTERMODULATION PRODUCTS; RF;

D O I：

暂无

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

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.

引用

页码：1361 / 1368

页数：8

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