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
  • [1] Digital compensation in IQ modulators
    Soh, EH
    Tuthill, J
    Sreeram, V
    Cantoni, A
    IEEE REGION 10 INTERNATIONAL CONFERENCE ON ELECTRICAL AND ELECTRONIC TECHNOLOGY, VOLS 1 AND 2, 2001, : 213 - 218
  • [2] Efficient implementation of digital compensation in IQ modulators
    Lee, GC
    Tuthill, J
    Cantoni, A
    2002 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS I-IV, PROCEEDINGS, 2002, : 2697 - 2700
  • [3] Robustness issues in digital compensation for IQ modulators
    Tuthill, J
    Cantoni, A
    IEEE REGION 10 INTERNATIONAL CONFERENCE ON ELECTRICAL AND ELECTRONIC TECHNOLOGY, VOLS 1 AND 2, 2001, : 641 - 646
  • [4] Design of digital pre-compensation filters by H∞ optimization
    Lim, AGKC
    Sreeram, V
    Wang, G
    PROCEEDINGS OF THE 2004 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2004, : 2087 - 2092
  • [5] Digital compensation in IQ modulators using adaptive FIR filters
    Galvin, A
    Lim, KC
    Sreeram, V
    Wang, GQ
    IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2004, 53 (06) : 1809 - 1817
  • [6] Low-Resolution Digital Pre-Compensation Enabled by Digital Resolution Enhancer
    Yoffe, Yaron
    Khanna, Ginni
    Wohlgemuth, Eyal
    de Man, Erik
    Spinnler, Bernhard
    Hanik, Norbert
    Napoli, Antonio
    Sadot, Dan
    JOURNAL OF LIGHTWAVE TECHNOLOGY, 2019, 37 (06) : 1543 - 1551
  • [7] Joint Digital and Optical Pre-compensation for 720 Gb/s All-Silicon IQ modulator Single Carrier Transmission
    Lin, Jiachuan
    Sepehrian, Hassan
    Rusch, Leslie A.
    Shi, Wei
    2018 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC), 2018,
  • [8] Pre-compensation of transmitter nonlinearity with memory effects in digital QAM systems
    Koike, S
    Noda, S
    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, 2004, E87A (10) : 2744 - 2754
  • [9] Conditions for static pre-compensation
    Nobakhti, A.
    ELECTRONICS LETTERS, 2010, 46 (24) : 1598 - 1599
  • [10] Digital Pre-Compensation of Inter-Channel Crosstalk for Superchannel Systems
    Pan, Jie
    Liu, Cheng
    Detwiler, Thomas
    Ralph, Stephen E.
    2012 IEEE PHOTONICS CONFERENCE (IPC), 2012, : 392 - 393
12345