1、 IEC/TR 61282-10 Edition 1.0 2013-01 TECHNICAL REPORT Fibre optic communication system design guides Part 10:Characterization of the quality of optical vector-modulated signals with the error vector magnitude IEC/TR 61282-10:2013(E)colourinsideCopyrighted material licensed to BR Demo by Thomson Reut
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10、controlled when printed.IEC/TR 61282-10 Edition 1.0 2013-01 TECHNICAL REPORT Fibre optic communication system design guides Part 10:Characterization of the quality of optical vector-modulated signals with the error vector magnitude INTERNATIONAL ELECTROTECHNICAL COMMISSION V ICS 33.180.01 PRICE CODE
11、 ISBN 978-2-83220-567-9 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-27-2014 by Jame
12、s Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 TR 61282-10 IEC:2013(E)CONTENTS FOREWORD.4 0 Introduction.6 0.1 Introduction to vector modulated signals.6 0.2 Digital coding with vector modulation.6 0.2.1 General.6 0.2.2 Constellation diagram.7 0.2.3 IQ dia
13、gram.7 0.3 Polarization multiplexing.8 0.4 Error vector.8 1 Scope.9 2 Normative references.9 3 Terms and definitions.9 4 Error vector magnitude calculations and conditions.10 4.1 Reference vector assignment.10 4.2 Normalization of the measured data.10 4.3 Conditions to be specified with EVMrms.11 5
14、Apparatus for measuring vector modulated signals.11 5.1 Coherent detector.11 5.2 Local oscillator.12 5.2.1 Detection based on electrical real-time sampling.12 5.2.2 Detection based on optical equivalent-time sampling.13 5.2.3 One-symbol delayed interferometer.16 5.2.4 Constellations of non-different
15、ial and differential phase modulation formats.17 5.3 Digital postprocessing.18 5.3.1 Impairment compensation.18 5.3.2 Relative timing skew.19 5.3.3 IQ phase angle distortion.19 5.3.4 Offset and relative gain distortion.20 5.3.5 Polarization alignment.21 5.3.6 Corrected results.21 5.3.7 Phase trackin
16、g(intradyne detection).21 5.3.8 Demodulation(optional).22 6 Additional measurement parameters to characterize special details of the signal.23 6.1 Time-resolved EVM.23 6.2 EVM with reference filter.25 6.3 Magnitude error.26 6.4 Phase error.26 6.5 I-Q gain imbalance.27 6.6 I-Q offset.27 6.7 Quadrature error.27 Annex A(informative)Relationship between EVM and Q factor.29 Annex B(informative)Details and implementations of vector signal measurement.30 Bibliography.31 Copyrighted material licensed
