Title
Frequency Domain Imbalance Estimation In Heterodyne Multimode/Band Receivers With Baseband Automatic Gain Control
Abstract
This paper proposes a novel scheme called as "frequency domain imbalance estimation" that estimates the imbalance of the Hilbert transformer in heterodyne multimode/band receivers with baseband automatic gain control (AGC). The proposed scheme uses correlation matrices in the frequency domain. This enables the receivers to keep high transmission performance in spite of the imbalance of the analog Hilbert transformer, by offsetting the imbalance. Moreover, the baseband AGC relaxes the requirement of the baseband AID converter. The performance of imbalance estimation and imbalance cancellation is verified by computer simulation. As a result, it is shown that the proposed scheme not only estimates the imbalance of Hilbert transformer with extremely high precision, but also cancels the image-band interference such that it achieves the theoretical performance.
Year
DOI
Venue
2013
10.1587/transcom.E96.B.271
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
cognitive radio, multimode/band receiver, image-band interference, heterodyne receiver, AGC
Frequency domain,Baseband,Image response,Radio receiver design,Computer science,Computer network,Electronic engineering,Heterodyne,Automatic gain control,Superheterodyne receiver,Cognitive radio
Journal
Volume
Issue
ISSN
E96B
1
0916-8516
Citations 
PageRank 
References 
0
0.34
3
Authors
4
Name
Order
Citations
PageRank
Satoshi Denno17625.60
Ke Liu200.34
Tatsuo Furuno3337.14
Masahiro Morikura418463.42