Automatic digital pre-compensation in IQ modulators

被引：3
|
作者：
Tuthill, J [1 ]
Cantoni, A [1 ]
机构：
[1] Curtin Univ Technol, Australian Telecommun Res Inst, Perth, WA 6845, Australia
来源：
ICASSP '99: 1999 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS VOLS I-VI | 1999年
关键词：
D O I：
10.1109/ICASSP.1999.756300
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
In digital IQ modulators generating Continuous Phase Frequency Shift Keying (CPFSK) signals, departures from flat-magnitude, linear phase in the pass bands of signal reconstruction filters in the I and Q channels cause ripple in the output signal envelope. Amplitude Modulation (AM) in the signal envelope function produces undesirable sidelobes in the FSK signal spectrum when the signal passes through nonlinear elements in the transmission path. A structure is developed for digitally pre-compensating for the magnitude and phase characteristics of signal reconstruction filters. Optimum digital pre-compensation filters are found using least squares(LS) techniques and we propose a method by which the optimum pre-compensation filters can be estimated using test input signals. This method can be used as part of an automatic compensation process.
引用
收藏
页码：1621 / 1624
页数：4
相关论文
共 50 条
  • [41] Improving the dynamic accuracy of industrial robots by trajectory pre-compensation
    Verdonck, W
    Swevers, J
    2002 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION, VOLS I-IV, PROCEEDINGS, 2002, : 3423 - 3428
  • [42] A pre-compensation control algorithm for vehicle platoon stability problem
    Zhang, Jindong
    Jia, Xiaoyan
    Zhou, Zhizong
    OPTIK, 2015, 126 (19): : 2208 - 2213
  • [43] NONLINEAR OPTICAL PROCESSING - EFFECTS OF INPUT MEDIUM AND PRE-COMPENSATION
    DASHIELL, SR
    SAWCHUK, AA
    APPLIED OPTICS, 1977, 16 (08): : 2279 - 2287
  • [44] Wavefront Pre-Compensation for Thermal Deformations in a Beam Control System
    Zhou, Qiong
    Jiang, Zongfu
    Xi, Fengjie
    Liu, Liang
    INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2011: LASER SENSING AND IMAGING AND BIOLOGICAL AND MEDICAL APPLICATIONS OF PHOTONICS SENSING AND IMAGING, 2011, 8192
  • [45] Identification and pre-compensation of the electrical memory effects in wireless transceivers
    Liu, TJ
    Boumaiza, S
    Ghannouchi, FM
    2006 IEEE RADIO AND WIRELESS SYMPOSIUM, PROCEEDINGS, 2006, : 535 - 538
  • [46] Nonlinear limitations of electronic dispersion pre-compensation by intrachannel effects
    Klekamp, A.
    Buchali, F.
    Audoin, M.
    Buelow, H.
    2006 OPTICAL FIBER COMMUNICATION CONFERENCE/NATIONAL FIBER OPTIC ENGINEERS CONFERENCE, VOLS 1-6, 2006, : 1017 - +
  • [47] Electrical nonlinearity pre-compensation for CO-OFDM system
    Liu, Xuejun
    Luan, Haiying
    Chen, Wenbai
    Dai, Yue
    Liu, Jiandong
    Lan, Bo
    OPTIK, 2014, 125 (02): : 616 - 619
  • [48] Precise pulse width measurement in write pre-compensation test
    Okawara, H
    INTERNATIONAL TEST CONFERENCE 2004, PROCEEDINGS, 2004, : 972 - 979
  • [49] A study of pre-compensation for thermal errors of NC machine tools
    Li, SH
    Zhang, YQ
    Zhang, GX
    INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 1997, 37 (12): : 1715 - 1719
  • [50] Digital Pre-Compensation Techniques Enabling Cost-Effective High-Order Modulation Formats Transmission
    Sadot, Dan
    Yoffe, Yaron
    Faig, Hananel
    Wohlgemuth, Eyal
    JOURNAL OF LIGHTWAVE TECHNOLOGY, 2019, 37 (02) : 441 - 450
12345