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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/60837

    題名: Blind Adaptive Compensation for Gain/Phase Imbalance and DC Offset in Quadrature Demodulator with Power Measurement
    作者: 陳巽璋;Sun, C.H.;Huang, C.Y.
    貢獻者: 淡江大學電機工程學系
    關鍵詞: quadrature modulation;gain/phase imbalance;DC offset;compensation;inverse QRD-RLS algorithm
    日期: 200404
    上傳時間: 2011-10-15 00:57:36 (UTC+8)
    摘要: 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.
    關聯: IEICE Trans. On Communications E87-B(4), pp.891-898
    顯示於類別:[電機工程學系暨研究所] 期刊論文





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