1、 INTERNATIONAL STANDARD IEC61108-4 First edition2004-07 Maritime navigation and radiocommunication equipment and systems Global navigation satellite systems(GNSS)Part 4:Shipborne DGPS and DGLONASS maritime radio beacon receiver equipment Performance requirements,methods of testing and required test
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9、d by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONAL STANDARD IEC61108-4 First edition2004-07 Maritime navigation and radiocommunication equipment and systems Global navigation satellite systems(GNSS)Part 4:Shipborne DGPS and
10、 DGLONASS maritime radio beacon receiver equipment Performance requirements,methods of testing and required test results IEC 2004 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and mi
11、crofilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch W For price,see current cataloguePRICE CODE Commission Ele
12、ctrotechnique InternationaleInternational Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 61108-4 IEC:2004(E)CONTENTS FOREWORD.4 1 Scope.6 2 Norm
13、ative references.6 3 Terms,definitions and abbreviations.7 3.1 Definitions.7 3.2 Abbreviations.7 4 Performance requirements.7 4.1 Introduction.7 4.2 Composition.8 4.3 Functional requirements.8 4.4 Protection.9 4.5 Integrity.9 4.6 Interfaces.10 4.7 IEC 61162-1,IEC 61162-2 implementation.10 4.8 IEC 61
14、162-3 implementation.10 4.9 Display and control.10 4.10 Installation.10 5 Technical characteristics.11 5.1 Carrier frequency.11 5.2 Frequency tolerance.11 5.3 Message types.11 5.4 Data transmission rate.11 5.5 Dynamic range.11 5.6 Maximum bit error ratio.11 5.7 Receiver selectivity and stability.11
15、5.8 Automatic frequency selection.12 5.9 Protection ratios.12 6 Methods of testing and required test results.13 6.1 General conditions of measurement and test signals.13 6.2 Operational tests.14 6.3 Protection of external connections.18 6.4 Integrity.18 6.5 Technical tests.18 6.6 Additional function
16、ality tests.20 Annex A(normative)Simulation of noise situations for the test of shipborne DGPS maritime radio beacon receiver equipment.21 A.1 Parameters describing noise.21 A.2 Noise models.22 A.3 Test procedures.26 Annex B(informative)Methodology for measuring WER.27 B.1 Recording the RTCM data stream.27 B.2 Analysing the RTCM data stream.27 B.3 Caution.27 Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permi
