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

页码：1621 / 1624

页数：4

共 50 条

[31] Calibration and pre-compensation of direct laser writing system [J].

Zhu, Feng ;

Zhou, Changhe ;

Ma, Jianyong .

HOLOGRAPHY, DIFFRACTIVE OPTICS, AND APPLICATIONS V, 2012, 8556

[32] Spectral Pre-Compensation and Security Print Deterrent Authentication [J].

Simske, Steven J. ;

Aronoff, Jason S. ;

Sturgill, Margaret ;

Villa, Juan Carlos .

NIP24/DIGITAL FABRICATION 2008: 24TH INTERNATIONAL CONFERENCE ON DIGITAL PRINTING TECHNOLOGIES, TECHNICAL PROGRAM AND PROCEEDINGS, 2008, :792-+

[33] A constrained approach to pre-compensation for TDD OFDM systems [J].

Butler, MRG ;

Fletcher, PN ;

Nix, AR ;

Bull, DR .

IEEE VTC 53RD VEHICULAR TECHNOLOGY CONFERENCE, SPRING 2001, VOLS 1-4, PROCEEDINGS, 2001, :648-652

[34] Adaptive Pre-Compensation of ROADMs in Coherent Optical Transponders [J].

Abdo, Ahmad ;

D'Amours, Claude .

2018 IEEE CANADIAN CONFERENCE ON ELECTRICAL & COMPUTER ENGINEERING (CCECE), 2018,

[35] Demonstration of Adaptive Optical Pre-Compensation in Horizontal Tests [J].

Brady, Aoife ;

Eberhardt, Ramona ;

Tuennermann, Andreas ;

Reinlein, Claudia .

2019 IEEE INTERNATIONAL CONFERENCE ON SPACE OPTICAL SYSTEMS AND APPLICATIONS (IEEE ICSOS), 2019,

[36] A Low-complexity Digital Pre-compensation of SOA Induced Phase Distortion in Coherent QAM Transmissions [J].

Lange, Sophie ;

Yoshida, Yuki ;

Kitayama, Ken-ichi .

2013 OPTICAL FIBER COMMUNICATION CONFERENCE AND EXPOSITION AND THE NATIONAL FIBER OPTIC ENGINEERS CONFERENCE (OFC/NFOEC), 2013,

[37] A Pre-Compensation Method for Digital-to-Analog Converter Using Minimax-Designed FIR Filters [J].

Tian, Qiaoyu ;

Wang, Yinan ;

Liu, Guiqing ;

Liu, Xiangyu ;

Diao, Jietao .

2018 IEEE 3RD INTERNATIONAL CONFERENCE ON SIGNAL AND IMAGE PROCESSING (ICSIP), 2018, :484-488

[38] Digitally Enhanced DAC: Low-Resolution Digital Pre-Compensation for High Speed Optical Links [J].

Yoffe, Yaron ;

Wohlgemuth, Eyal ;

Sadot, Dan .

2018 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC), 2018,

[39] A Pre-compensation Fuzzy Logic Algorithm Designed for the Dynamic Compensation Robotic System [J].

Huang, Shouren ;

Yamakawa, Yuji ;

Senoo, Taku ;

Ishikawa, Masatoshi .

INTERNATIONAL JOURNAL OF ADVANCED ROBOTIC SYSTEMS, 2015, 12

[40] Design Method of the Stroke Ring Based on Deformation Pre-Compensation [J].

An, Gaocheng ;

Gao, Kai ;

Dong, Hongquan ;

Liu, Baoyu ;

Li, Lin ;

Hu, Zhenhua .

ACTUATORS, 2024, 13 (01)

← 1 2 3 4 5 →