icao doc 8071 spohnheimer

ICAO Document 8071 -Manual on Testing of

Radio Navigation Aids

L. Nelson Spohnheimer, US FAAICAO Nav Systems Panel

IntroductoryGraphics

DarcySun Conure

SophieSolomon Island Eclectus

TootsieSenegal

ICAO Doc 8071• Contains ground and flight testing guidance• Volume 1 -- Conventional navaids except

MLS, last published early 1970’s• Volume 2 -- GNSS (SatNav)

– ABAS - Aircraft-Based Augmentation Systems– SBAS -- Space-Based Augmentation Systems– GBAS -- Ground-Based Augmentation Systems

• Separate Volume, unchanged -- MLS

Doc 8071 Study Group• 1995 -- All Weather Operations Panel formed

TRNSGTRNSG (Testing of Radio Navigation Aids StudyGroup) to revise Doc 8071– Initially 11 countries, 15 participants

• 2004 -- Navigation Systems Panel formedCN&TSGCN&TSG (Conventional NavAids & TestingSubgroup) to continue Doc 8071 work– Membership expanded

Doc 8071 Meetings

TRNSG Meetings - Vol. 1• TRNSG/1, Montreal, 10/95 -- conceptual

– Informal, IFIS, Braunschweig, 06/96 -- conceptual

• TRNSG/2, Montreal, 04/98– Informal, IFIS, Seattle, 06/98– Informal, Montreal, 01/99 - final editing meeting

• TRNSG/3, Montreal, 03/00 -- reviewed Vol 1, beganVolume 2, with major contribution from informalSatNav group

TRNSG Meetings - Vol. 2• TRNSG/3, Montreal, 03/00 -- began Volume 2

– Informal, IFIS, Santiago, June 2000

• TRNSG/4, Florida, 02/01,• TRNSG5, Montreal, 03/02

– Informal, IFIS, Rome, 06/02

• TRNSG/5.5, Toulouse, 02/03 (GBAS Subgroup)• TRNSG/6, Atlantic City, 08/03

CN&TSG Meetings - Vol. 1 & 2• 1st Meeting, CN&TSG, Toulouse, 03/04

– Preparation for St. Petersburg NSP Meeting 05/04– Review of outstanding issues with Doc 8071

• Conventional and SatNav– Review of work items on conventional navaids

identified by TRNSG, 11th ANC and NSP WG1:• DME, VOR, ILS, MLS

• 2nd Meeting, CN&TSG, St. Petersburg, 05/04

Doc 8071 Volume 1• “Testing of Ground-Based Radio Navigation

Systems”, 4th Edition published 2000• Complete rewrite -- General Contents

– Ch 1 -- General,– Ch 2 -- VOR– Ch 3 -- DME– Ch 4 -- ILS

– Ch 5 -- NDB– Ch 6 -- Enroute Markers– Ch 7 -- PAR– Ch 8 -- Instrument Flight Procedures

– Appendix A -- ITU Recommendation ITU-R IL.1140, Nav Receivertesting for FM Broadcast Immunity, 108-118 MHz.

– Appendix B -- ITU Recommendation ITU-R IS.1009-1, Compatibilitybetween FM Broadcast and Aeronautical Services, 108-137 MHz.

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Changes to Volume 1• Hazardously Misleading Information (HMI) --

5/01 ICAO State Letter• New issues accumulated during Volume 2

meetings and discussions– VOR Orbits– ILS Flyability– Calibration requirements for Marker Beacons– Protection of Navaids from Multipath (e.g., Wind

Farms, Hangars, etc.)

Doc 8071 Volume 2• “Testing of Satellite-Based Radio Navigation

Systems”, 4th Edition draft published 2002, RomeIFIS, Chapters 1 and 2 only, with request forcomments– Ch 1 -- General

• Attachment 1 -- Flight Inspection Aircraft• Attachment 2 -- Documentation and Data Recording• Attachment 3 -- (GNSS) Interference Issues• Attachment 4 -- GNSS System Descriptions

– Ch 2 -- ABAS, Non-Precision Approach (NPA) Procedures

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Doc 8071 Volume 2 Cont’d

• Ch 3 -- SBAS (Procedures), ready for publication. . .• System Description• Ground Testing

– System testing outside scope of 8071, to be performed byservice provider or host States

– Airport Survey Accuracy– GNSS Interference Testing (covered in Chapter 1)– Ground Test Requirements for SBAS Procedures & Final

Approach Segment Accuracy

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• Ch 3 SBAS Contents (cont’d)• Airborne Testing (of SBAS Procedures)

– Pre-departure checks– In-flight activities -- maneuvering, procedure validation,

interference– Reports and report forms– Test equipment -- position-fixing system not required,

stand-alone SBAS receiver or FMS must have manualentry capability, some parameter outputs recommended

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• Ch 4 -- GBAS, recognized incomplete, will beupdated after more experience, 2007 target date

• System Description– Accuracy assessments on ground, in-flight optional

• Ground Testing– Accuracy (statistical, procedure TBD, proposed 24 hours)– Broadcast Signal-in-Space integrity parameters– Ranging interference– VHF Data Broadcast (VDB) Parameters– Monitoring

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• Ch 4 GBAS Contents (cont’d)• Airborne Testing

– Definition of when required (6 events)– Pre-departure checks & In-flight activities (maneuvering,

procedure validation, interference, coverage, identification,data content)

– Position accuracy (optional, position-fixing required)– Charts and reports– Test equipment (receiver appropriate for phase of flight, with

modifications (e.g., operate in test mode, parameter outputs), position-fixing system for Cat II/III, data logging equipment

Details

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Future Work Plan for CN&TSG• Update and maintenance of Doc 8071• Review and update of SARPs for conventional

navaids• Review and update of guidance material for

conventional navaids• RNAV – including update to SARPs to support

application of DME in RNAV operations• Next (NSP) meeting – October 2004, Montreal

End -- Doc 8071 Update

Thank you for listening!Questions?

Next Speaker -- Alessandro Capretti,Technical Officer

ICAO CNS SectionTopic: RFI

Next

End -- Doc 8071 Update

Thank you for listening!Questions?

Next Speaker -- Alessandro Capretti,Technical Officer

ICAO CNS SectionTopic: RFI

SBAS Flight Testing Requirements• Prior to commissioning, each runway served and each approach• If interference reported/suspected and ground testing cannot confirm

elimination of the source• If procedure modified or new procedure introduced• If changes to GBAS config occur such as the location of the GBAS

ground subsystem antenna phase-center, the location of the data linktransmit antenna, or the system database

• If site changes occur with potential to impact GNSS signal reception anddata broadcast transmission

• Following certain maintenance activities• If periodic flight tests are desired, parameters and intervals will be

determined by individual states Back

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icao doc 8071 spohnheimer

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