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
收藏
页码：1361 / 1368
页数：8
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