Real-time imbalance compensator for wideband receiver applications
- Author(s): Vincent Mancuso 1 ; Peter Buxa 2 ; Chi-Hao Cheng 3 ; David Lin 2 ; Lihyeh Liou 2 ; Matthew Longbrake 2 ; Thomas Pemberton 2
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View affiliations
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Affiliations:
1:
Northrop Grumman Electronics Systems, Baltimore, Maryland, USA;
2: US Air Force Research Laboratory, Sensor Directorate, Dayton, OH, USA;
3: Electrical and Computer Engineering, Miami University, Oxford, Ohio, USA
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Affiliations:
1:
Northrop Grumman Electronics Systems, Baltimore, Maryland, USA;
- Source:
Volume 9, Issue 7,
August 2015,
p.
743 – 750
DOI: 10.1049/iet-rsn.2014.0347 , Print ISSN 1751-8784, Online ISSN 1751-8792
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To increase the bandwidth of a wideband receiver for surveillance applications, an in-phase/quadrature-phase (I/Q) channel-based receiver is a potential approach. However, the image caused by an imperfect coupler prevents the I/Q channel-based receiver from becoming a reality. Air Force Research Laboratory developed an imbalance compensation method covering two Nyquist zones. In this study, the authors present its implementation with a field-programmable gate array board. Experimental results demonstrate the effectiveness of the proposed imbalance compensation algorithm and its feasibility.
Inspec keywords: surveillance; radio receivers; field programmable gate arrays
Other keywords: imbalance compensation algorithm; quadrature-phase channel based receiver; surveillance applications; real-time imbalance compensator; in-phase channel based receiver; field programmable gate array board; imperfect coupler; wideband receiver applications; I/Q channel based receiver; Air Force Research Laboratory; Nyquist zones
Subjects: Logic circuits; Radio communications (military and defence); Radar and radiowave systems (military and defence); Military circuits, components, and equipment; Radio links and equipment
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