SIST EN 301 091 V1.1.1:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Road Transport and Traffic Telematics (RTTT); Technical characteristics and test methods for radar equipment operating in the 76 GHz to 77 GHz band35.240.60Uporabniške rešitve IT v transportu in trgoviniIT applications in transport and trade33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:EN 301 091 Version 1.1.1SIST EN 301 091 V1.1.1:2003en01-december-2003SIST EN 301 091 V1.1.1:2003SLOVENSKI
STANDARD



SIST EN 301 091 V1.1.1:2003



EN 301 091 V1.1.1 (1998-06)European Standard (Telecommunications series)Electromagnetic compatibilityand Radio spectrum Matters (ERM);Road Transport and Traffic Telematics (RTTT);Technical characteristics and test methodsfor radar equipment operating in the 76 GHz to 77 GHz bandSIST EN 301 091 V1.1.1:2003



ETSIEN 301 091 V1.1.1 (1998-06)2ReferenceDEN/ERM-RP08-0401 (a3o00ico.PDF)KeywordsRadar, radioETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88Internetsecretariat@etsi.frhttp://www.etsi.frhttp://www.etsi.orgCopyright NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1998.All rights reserved.SIST EN 301 091 V1.1.1:2003



ETSIEN 301 091 V1.1.1 (1998-06)3ContentsIntellectual Property Rights.6Foreword.6Introduction.71Scope.82Normative references.83Definitions, symbols and abbreviations.93.1Definitions.93.2Symbols.103.3Abbreviations.104General.104.1Presentation of equipment for testing purposes.104.1.1Choice of model for type testing.114.2Mechanical and electrical design.114.2.1General.114.2.2Controls.114.2.3Marking (equipment identification).114.2.3.1Equipment identification.114.2.3.2Regulatory markings.124.3Declarations by the applicant.124.4Auxiliary test equipment.124.5Interpretation of the measurement results.125Test conditions, power sources and ambient temperatures.125.1Normal and extreme test conditions.125.2External test power source.125.3Normal test conditions.135.3.1Normal temperature and humidity.135.3.2Normal test power source.135.3.2.1Mains voltage.135.3.2.2Regulated lead-acid battery power sources.135.3.2.3Other power sources.135.4Extreme test conditions.135.4.1Extreme temperatures.135.4.1.1Procedure for tests at extreme temperature.135.4.1.2Extreme temperature ranges.145.4.2Extreme test power source.145.4.2.1Mains voltage.145.4.2.2Lead-acid battery, regulated power sources.145.4.2.3Power sources using other types of batteries.145.4.2.4Other power sources.156General conditions.156.1Test fixture.156.1.1Calibration.167Methods of measurement and limits for the transmitter RF parameters.167.1Permitted range of operating frequencies.177.1.1Definition.177.1.2Method of measurement.177.1.3Limits.177.2Radiated power density.177.2.1Definition.177.2.2Method of measurement.18SIST EN 301 091 V1.1.1:2003



ETSIEN 301 091 V1.1.1 (1998-06)47.2.2.1Equipment with a fixed beam antenna (i.e. non-steerable by either mechanical or electronicmeans).187.2.2.2Equipment with (electronically or mechanically) steerable antenna(s).187.2.3Limits.197.2.3.1Equipment with fixed beam antenna.197.2.3.2Equipment with (electronically or mechanically) steerable antennas.197.3Maximum safe level for radiated power density.197.4Modulation schemes.197.4.1Pulse modulation.197.4.1.1Definition.197.4.1.2Methods of measurement.207.4.1.3Limits.217.4.2Frequency modulated continuous wave.217.4.2.1Definition.217.4.2.2Methods of measurement.227.4.2.3Limits.227.4.3Frequency Shift Keying (FSK).237.4.3.1Definition.237.4.3.2Method of measurement.247.4.3.3Limits.257.5Radiated spurious emissions.257.5.1Definition.257.5.2Measuring receiver.257.5.3Method of measurement for radiated spurious emission.257.5.4Limits.267.6Unwanted emissions caused by the application of the modulation.267.6.1Definition.267.6.2Measuring receiver.277.6.3Method of measurement.277.6.4Limits.288Measurement uncertainty.28Annex A (normative):Radiated measurements.29A.1Test sites and general arrangements for measurements involving the use of radiated fields.29A.1.1Open Area Test Site (OATS).29A.1.2Test antenna.30A.1.3Standard position.30A.1.4Optional additional indoor site.30A.2Guidance on the use of radiation test sites.31A.2.1Measuring distance.31A.2.2Test antenna.31A.2.3Substitution antenna.32A.2.4Auxiliary cables.32A.3Further optional alternative indoor test site using a fully anechoic RF chamber.32A.3.1Example of the construction of a shielded anechoic chamber.32A.3.2Influence of parasitic reflections in anechoic chambers.33A.3.3Calibration of the shielded RF anechoic chamber.33SIST EN 301 091 V1.1.1:2003



ETSIEN 301 091 V1.1.1 (1998-06)5Annex B (normative):General description of measurement methods.35B.1Radiated measurements.35Annex C (normative):Subclauses of the present document relevant for compliance with theessential requirements of relevant EC Council Directives.37Annex D (informative):Maximum safe level of radiated power density.38D.1Definition.38D.2Method of measurement.38D.2.1Equipment with a fixed beam antenna(s) (i.e. non-steerable by either mechanical or electronic means).38D.2.2Equipment with (electronically or mechanically) steerable antenna.38D.3Limit.38Annex E (informative):Conversion of power density to EIRP.39E.1Assumptions.39E.2Example.39History.40SIST EN 301 091 V1.1.1:2003



ETSIEN 301 091 V1.1.1 (1998-06)6Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on theETSI Web server (http://www.etsi.fr/ipr or http://www.etsi.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by ETSI Technical CommitteeElectromagnetic compatibility and Radio spectrum Matters (ERM).This present document, together with ETS 300 683, is intended to become a Harmonized Standard, the reference ofwhich will be published in the Official Journal of the European Communities referencing the Council Directive on theapproximation of the laws of the Member States relating to ElectroMagnetic Compatibility ("the EMC Directive")(89/336/EEC as amended).The technical parameters which are relevant to the ElectroMagnetic Compatibility (EMC) directive are listed inannex C.Where equipment compliant with the present document is intended for fitment into vehicles, then it is subject toautomotive EMC type approval and has to comply with directive 95/54/EC. For use on vehicles outside the scope of95/54/EC compliance with an EMC directive/standard appropriate for that use is required (e.g. 97/24/EC for 2/3wheeled vehicles).For non-automotive use, compliance with an EMC directive/standard, appropriate for that use is required.National transposition datesDate of adoption of this EN:19 June 1998Date of latest announcement of this EN (doa):30 September 1998Date of latest publication of new National Standardor endorsement of this EN (dop/e):31 March 1999Date of withdrawal of any conflicting National Standard (dow):31 March 1999SIST EN 301 091 V1.1.1:2003



ETSIEN 301 091 V1.1.1 (1998-06)7IntroductionThe present document contains the technical characteristics for radio equipment referencing CEPT/ERC Decision andRecommendations, including TR 01-06 [6].The present document was drafted on the assumption that type test measurements performed by an accredited testlaboratory, will be accepted by the various national regulatory authorities in order to grant type approval, provided thenational regulatory requirements are met. This is in compliance with CEPT/ERC Recommendation T/R 01-06 [6].The present document refers to short range radar systems using specified modulation schemes, and within the band76 GHz to 77 GHz as specified by ERC/DEC/(92)02 [1].Full use of the 76 GHz to 77 GHz band is permitted subject to the constraints as defined in clause 7.There are two "classes" defined within the present document, class 1 and class 2. The single difference between thesetwo classes is the level of permitted transmitted power in the 76 GHz to 77 GHz band.The present document reflects the potential for the coexistence of the maximum number of systems in the samegeographical location, with minimal interference.For class 1, the mean power density at the carrier frequency does not exceed 0,9 W / m2 at 3 m (50 dBm EIRP).The peak equivalent power density at the carrier frequency does not exceed 3 W / m2 at 3 m (55 dBm EIRP).For class 2, the mean power density at the carrier frequency does not exceed 0,002 W / m2 at 3 m (23,5 dBm EIRP).The peak equivalent power density at the carrier frequency does not exceed 3 W / m2 at 3 m (55 dBm EIRP).In order to permit the greatest freedom of design of equipment, whilst protecting other radio services from disturbance, abalance is required between the permitted range of frequencies on which the equipment may be used, and its frequencystability and modulation characteristics. The present document specifies the operational frequency and bandwidth ascovered by ERC/DEC/(92)02 [1].Clauses 1 to 3 give a general description of the types of equipment covered by the present document and the definitionsand abbreviations used. Clause 4 gives general information in order that type tests may be carried out and any markingson the equipment to be provided by the manufacturer.Clauses 5 and 6 specify the test conditions.Clause 7 specifies the limits of the parameters which are required to be tested. These limits have been chosen tominimize harmful disturbance to and from other equipment and services. These clauses also specify how the equipmentis to be tested and the conditions which are applied.Clause 8 specifies the maximum measurement uncertainty values.Annex A provides normative standards concerning test sites for radiated measurements.Annex B provides general information relating to measurement methods.Annex C provides information on the technical parameters which need to comply with the EMC Directive.Annex D is an informative annex relating to the permitted safe levels of radiated power.Annex E is an informative annex on the equation for the conversion of power density to Equivalent IsotropicallyRadiated Power (EIRP).SIST EN 301 091 V1.1.1:2003



ETSIEN 301 091 V1.1.1 (1998-06)81ScopeThe present document specifies the requirements for a short range 76 GHz to 77 GHz radar intended for Road Transportand Traffic Telematics (RTTT) applications (amongst others), such as Automotive Cruise Control (ACC), CollisionWarning (CW) and Anti-Collision (AC) systems for vehicles, and to assure electromagnetic compatibility.The present document applies to:-low power motion and distance monitoring radars for mobile and fixed applications; operating on radiofrequencies in the 76 GHz to 77 GHz band, with mean power densities of up to 0,9 W / m2 at 3 m (50 dBmEIRP), and up to 3 W / m2 peak at 3 m (55 dBm EIRP) for class 1, and mean power densities of up to0,002 W / m2 at 3 m (23,5 dBm EIRP), and up to 3 W / m2 peak at 3m (55 dBm EIRP) for class 2.It covers the minimum characteristics considered necessary in order to make the best use of the allocated frequencyband. It does not necessarily include all the characteristics which may be required by a user, nor does it necessarilyrepresent the optimum performance achievable.The present document is based upon ERC/DEC/(92)02 [1]. It is a product standard covering various RTTT applications.The present document covers radars for fixed and mobile applications. It covers integrated transceivers and separatetransmit/receive modules.The present document includes standards for methods of measurement for equipment fitted with associated antenna.Additional standards or standards may be required for equipment such as that intended for connection to the public orprivate networks or other systems.2Normative referencesReferences may be made to:a)specific versions of publications (identified by date of publication, edition number, version number, etc.), inwhich case, subsequent revisions to the referenced document do not apply; orb)all versions up to and including the identified version (identified by "up to and including" before the versionidentity); orc)all versions subsequent to and including the identified version (identified by "onwards" following the versionidentity); ord)publications without mention of a specific version, in which case the latest version applies.A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the samenumber.[1]ERC Decision of 22 October 1992 on the frequency bands to be designated for the co-ordinatedintroduction of Road Transport Telematic Systems (RTT) (ERC/DEC/(92)02).[2]CISPR 16-1: "Specifications for radio disturbance and immunity measuring apparatus andmethods; Part 1: Radio disturbance and immunity measuring apparatus".[3]CISPR 16-2 "Specifications for radio disturbances and immunity measuring apparatus andmethods; Part 2: Methods of measurement of disturbance and immunity".[4]EN 55022 (1995): "Limits and methods of measurement of radio disturbance characteristics ofinformation technology equipment".[5]Regulation 95/54/EEC the Automotive EMC Directive.[6]ERC/REC Recommendation TR 01-06: "Procedure for mutual recognition of type testing approvalfor radio equipment".SIST EN 301 091 V1.1.1:2003



ETSIEN 301 091 V1.1.1 (1998-06)9[7]ETR 028: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in themeasurement of mobile radio equipment characteristics".[8]ENV 50166-2 (1995): "Human Exposure to electromagnetic fields High Frequency (10 kHz to300 GHz)".[9]Radio Regulations - International Telecommunication Union Edition of 1990 revised 1994.3Definitions, symbols and abbreviations3.1DefinitionsFor the purposes of the present document, the following definitions apply:assigned frequency band: The frequency band within which the device is authorized to operate.associated antenna: An antenna and all its associated components which are designed as an indispensable part of theequipment.mean power: The mean power supplied from the antenna during an interval of time sufficiently long compared with thelowest frequency encountered in the modulation taken under normal operating conditions, see Radio Regulations [9].duty factor: The ratio of the area of the beam (measured at its 3 dB point) to the total area scanned by the antenna (asmeasured at its 3 dB point).Equipment Under Test (EUT): The radar sensor including the integrated antenna together with any external antennacomponents which affect or influence its performance.maximum safe level for radiated power density: That level which can be transmitted in accordance with the currentrecommended safety levels in ENV 50166-2 [8].operating frequency range: The range of operating frequencies over which the equipment can be adjusted throughswitching or reprogramming.operating frequency (operating centre frequency): The nominal frequency at which equipment is operated.Equipment may be able to operate at more than one operating frequency.peak envelope power: The mean power supplied from the antenna during one radio frequency cycle at the crest of themodulation envelope taken under normal operating conditions, see Radio Regulations [9].permitted range of operating frequencies: The frequency range over which the approved equipment may operate.Pulse Repetition Frequency (PRF): The inverse of the Pulse Repetition Interval, averaged over a time sufficiently longas to cover all PRI variations.Pulse Repetition Interval (PRI): The time between the rising edges of the transmitted (pulsed) output power.radiated power density: The power per unit area normal to the direction of the electromagnetic wave propagation. It isexpressed in units of W/m2.radiated spurious emissions: Emissions at frequencies other than those of the carrier and sidebands associated withnormal modulation.radome: An external protective cover which is independent of the associated antenna, and which may contribute to theoverall performance of the antenna (and hence, the EUT).SIST EN 301 091 V1.1.1:2003



ETSIEN 301 091 V1.1.1 (1998-06)103.2SymbolsFor the purposes of the present document, the following symbols apply:lWavelength1/Prepetition rat
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