Blind Adaptive Compensation for Gain/Phase Imbalance and DC Offset in Quadrature Demodulator with Power Measurement

Chun-Hung SUN; Shiunn-Jang CHERN; Chin-Ying HUANG

Blind Adaptive Compensation for Gain/Phase Imbalance and DC Offset in Quadrature Demodulator with Power Measurement

Chun-Hung SUN, Shiunn-Jang CHERN, Chin-Ying HUANG

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In this paper we propose a new blind adaptive compensator associated with the inverse QRD-RLS (IQRD-RLS) algorithm to adaptively estimate the parameters, related to the effects of gain/phase imbalance and DC offsets occur in the Quadrature demodulator, for compensation. In this new approach the power measurement of the received signal is employed to develop the blind adaptation algorithm for compensator, it does not require any reference signal transmitted from the transmitter and possess the fast convergence rate and better numerical stability. To verify the great improvement, in terms of reducing the effects of the imbalance and offset, over existing techniques computer simulation is carried out for the coherent 16 PSK-communication system. We show that the proposed blind scheme has rapidly convergence rate and the smaller mean square error in steady state.

Publication: IEICE TRANSACTIONS on Communications Vol.E87-B No.4 pp.891-898

Publication Date: 2004/04/01

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Type of Manuscript: PAPER

Category: Wireless Communication Technology

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Chun-Hung SUN, Shiunn-Jang CHERN, Chin-Ying HUANG, "Blind Adaptive Compensation for Gain/Phase Imbalance and DC Offset in Quadrature Demodulator with Power Measurement" in IEICE TRANSACTIONS on Communications, vol. E87-B, no. 4, pp. 891-898, April 2004, doi: .
Abstract: In this paper we propose a new blind adaptive compensator associated with the inverse QRD-RLS (IQRD-RLS) algorithm to adaptively estimate the parameters, related to the effects of gain/phase imbalance and DC offsets occur in the Quadrature demodulator, for compensation. In this new approach the power measurement of the received signal is employed to develop the blind adaptation algorithm for compensator, it does not require any reference signal transmitted from the transmitter and possess the fast convergence rate and better numerical stability. To verify the great improvement, in terms of reducing the effects of the imbalance and offset, over existing techniques computer simulation is carried out for the coherent 16 PSK-communication system. We show that the proposed blind scheme has rapidly convergence rate and the smaller mean square error in steady state.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/e87-b_4_891/_p

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@ARTICLE{e87-b_4_891,
author={Chun-Hung SUN, Shiunn-Jang CHERN, Chin-Ying HUANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Blind Adaptive Compensation for Gain/Phase Imbalance and DC Offset in Quadrature Demodulator with Power Measurement},
year={2004},
volume={E87-B},
number={4},
pages={891-898},
abstract={In this paper we propose a new blind adaptive compensator associated with the inverse QRD-RLS (IQRD-RLS) algorithm to adaptively estimate the parameters, related to the effects of gain/phase imbalance and DC offsets occur in the Quadrature demodulator, for compensation. In this new approach the power measurement of the received signal is employed to develop the blind adaptation algorithm for compensator, it does not require any reference signal transmitted from the transmitter and possess the fast convergence rate and better numerical stability. To verify the great improvement, in terms of reducing the effects of the imbalance and offset, over existing techniques computer simulation is carried out for the coherent 16 PSK-communication system. We show that the proposed blind scheme has rapidly convergence rate and the smaller mean square error in steady state.},
keywords={},
doi={},
ISSN={},
month={April},}

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TY - JOUR
TI - Blind Adaptive Compensation for Gain/Phase Imbalance and DC Offset in Quadrature Demodulator with Power Measurement
T2 - IEICE TRANSACTIONS on Communications
SP - 891
EP - 898
AU - Chun-Hung SUN
AU - Shiunn-Jang CHERN
AU - Chin-Ying HUANG
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E87-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2004
AB - In this paper we propose a new blind adaptive compensator associated with the inverse QRD-RLS (IQRD-RLS) algorithm to adaptively estimate the parameters, related to the effects of gain/phase imbalance and DC offsets occur in the Quadrature demodulator, for compensation. In this new approach the power measurement of the received signal is employed to develop the blind adaptation algorithm for compensator, it does not require any reference signal transmitted from the transmitter and possess the fast convergence rate and better numerical stability. To verify the great improvement, in terms of reducing the effects of the imbalance and offset, over existing techniques computer simulation is carried out for the coherent 16 PSK-communication system. We show that the proposed blind scheme has rapidly convergence rate and the smaller mean square error in steady state.
ER -