Presentation is loading. Please wait.

Presentation is loading. Please wait.

Darrell Ernst Gerhard Mayer February 2005 AERONAUTICAL TELEMETRY.

Similar presentations


Presentation on theme: "Darrell Ernst Gerhard Mayer February 2005 AERONAUTICAL TELEMETRY."— Presentation transcript:

1 Darrell Ernst Gerhard Mayer February 2005 AERONAUTICAL TELEMETRY

2 2 Introduction WRC Agenda Item 1.5 The Aeronautical Telemetering Community The International Consortium for Telemetry Spectrum The ICTS Position A Video about Flight Testing and Agenda Item 1.5

3 3 WRC-07 Agenda Item 1.5 1.consider the spectrum required to satisfy justified wideband aeronautical mobile telemetry requirements and associated telecommand above 3 GHz; 2.review, with a view to upgrading to primary, secondary allocations to the mobile service in the frequency range 3-16 GHz for the implementation of wideband aeronautical telemetry and associated telecommand; 3.consider possible additional allocations to the mobile service, including aeronautical mobile, on a primary basis in the frequency range 3-16 GHz for the implementation of wideband aeronautical telemetry and associated telecommand, taking into account considering d) above; 4.designate existing mobile allocations between 16 and 30 GHz for wideband aeronautical telemetry and associated telecommand,

4 4 Future Data Rates Prediction is hard, especially about the future Data rate for one vehicle

5 5 Implications for the Spectrum Multiply data rate by efficiency factor for each modulation type: PCM/FM=2.4 Hz/bitTier 1= 1.2 Hz/bitTier 2= 0.8 Hz/bit Current B/W Allocation = 215 Bandwidth needed for one vehicle

6 6 Region 1 Kiruna, Sweden Formosa Bay, Kenya Coronie, Surinam Biscarosse, France Salto di Quirra, Sardinia Aberporth, Wales Zingst, Germany Emba, Kazakhstan Region 3 Anna Plains, Australia Chandapore, India Sonmiani, Pakistan Chiu Peng, Taiwan Shuang Chenghzi, China Changwon, S.Korea Malute, Pakistan Wake, Marshall Islands Region 2 Tortuguero, Puerto Rico Punta Lobos, Peru Ft.Yukon, Alaska Nanoose Bay, Canada Mar Chiquita, Argentina Wallops, USA Stromfjord, Greenland Poker Flat, Alaska Sounding rocket launch sites

7 7 Science Missions Requiring Wideband TM Existing LEO-satellite data collection platforms only for narrow band data transmission (e.g. Argos, Orbcomm) available Onboard storage capacity limited by space and weight, data compression & reduction of science data onboard critical Data required on ground mostly in near-realtime Therefore: High-resolution science instruments, like imaging sensors, spectrometers, carried as Balloon, Sounding Rocket or UAV- payload need wideband telemetry links to fulfill their future missions

8 8 Telemetry Inevitable in Global Missions Platforms on balloon, sounding rocket and UAV required for In-situ-measurements & calibration of satellite and groundborne instruments Examples of important disciplines : Geophysics Atmosphere, Land, Sea, Ice Research Biology Animal behaviour & wildlife research Remote Medical Supervision patient monitoring e.g. at expeditions (bush telemetry)

9 9 Science and Telemetry Goes Global… Local changes of environmental parameters have a world-wide impact Wide-area telemetry networks needed to collect data from e.g. remote field stations, balloons, buoys, sounding rockets, UAV Specific ranges for launching, science observations and data collection worldwide available

10 10 To Ensure the Future Availability of Electromagnetic Spectrum for Telemetering ICTS MISSION:

11 11 International Foundation for Telemetering Board of Directors Region I (Europe/Africa) Coordinator J. M. Berges Region II (Americas) Coordinator M. Ryan Region III (Asia) Coordinator V. Crouch ICTS Chair S. Lyons ICTS Secretary/Treasurer ICTS Vice Chair G. Mayer Region I Members Region II Members Region III Members D. Holtmeyer www.telemetry.org vrcrouch@bold.net.au

12 12 Aeronautical Telemetry

13 13 What is Telemetry? Telemetry : The process of measuring at a distance. Aeronautical telemetry: The process of making measurements on an aeronautical vehicle and sending those measurements to a distant location for analysis TemperaturesFlows Vibrations Velocities Pressures If it is ORANGE it is flight test measurement

14 14 End Slide

15 15 Current Band Allocations X=PermittedG=Government OnlyNG=Non-Government Only

16 16 X=PermittedG=Government OnlyNG=Non-Government Only Current Band Allocations (Concluded)

17 17 Spectrum Encroachment 2390 2350 2200 2250 2300 2200-2290 MHz: Unmanned 2360-2390 MHz: Manned 1435-1525 MHz: Manned Vehicle (L Band) Telemetry 2200-2390 MHz: Manned and Unmanned Vehicle (S Band) Telemetry 1525 1500 1435 1460 1485 One A/C can easily use over 20MHz of spectrum for a single mission WARC 92 BBA 97 Terrestrial DAB (Canada), CARIBSS, MediaStar OBRA 93 BBA 97 WARC 92 US Alternative

18 18 TELEMETERING APPLICATIONS The use of telemetry spectrum is common to many different nations and many purposes –National defense –Commercial aerospace industry –Space applications –Scientific research The primary telemetering applications represented by ICTS are –Range and range support systems Land mobile Sea ranges Air ranges –Space-based telemetry systems –Meteorological telemetry

19 19 Aero-Sensing Aerospace and Flight Test Radio Coordination Council Aerospatiale Airbus Airbus Australian Department of Defence Boeing Company British Aerospace Dassault Aviation Eurocopter European Telemetering Standardization Committee French Department of Defense German Society of Telemetering IN SNEC MITRE Corporation National Aeronautics and Space Administration (NASA) New Mexico State University Sandia National Laboratories SEE Spanish Department of Defense United Kingdom Department of Defence United States Department of Defense ICTS SOCIETAL MEMBERSHIP

20 20

21 21 Techniques for Mitigating Spectrum Growth TechniquePotential GainLimitations Command LinkSignificant reduction of data quantities Receiver volume & power, duration of test NetworkingReduce channel inefficienciesDestructive & short duration tests On-Board ProcessingSignificant reduction of transmitted data Unexpected events Data CompressionPotential to reduce amount of transmitted data Link layer compression has no advantage On-Board RecordingOff-loading of data not needed real-time No data if platform does not return to ground intact Modeling and Simulation (M&S) Reduced flight data collectionValidity and accuracy of M&S In-Band TelemetryNo independent telemetry linkData link not always available Real Time Spectrum Management Efficient use of available spectrum Predictable behavior of algorithms has not been verified On-Board Test Engineer Reduce data transmission to ground Only feasible on large manned aircraft Directional Transmit Antenna Increased signal strength, spectrum reuse Volume, cost of antenna

22 22 RESOLUTION [COM7/5] (WRC-03) Consideration of mobile allocations for use by wideband aeronautical telemetry and associated telecommand The World Radiocommunication Conference (Geneva, 2003) Considering a)that there is a need to provide global spectrum to the mobile service for wideband aeronautical telemetry systems; b)that there is an identified need for additional spectrum required to meet future wideband aeronautical telemetry demands; c)that there is also a need to accommodate telecommand operations associated with aeronautical telemetry; that there is a need to protect existing services, Noting a)that a number of bands between 3 GHz and 30 GHz are already allocated to the mobile service, without excluding the aeronautical mobile service, on a secondary basis; that any spectrum allocated to the mobile service above 3 GHz (to include aeronautical telemetry) is not a substitution for existing allocations used for aeronautical telemetry purposes below 3 GHz, the requirement for which will continue, Recognizing a)that there are emerging telemetry systems with large data transfer requirements to support testing of commercial aircraft and other airframes; b)that the future technologies and performance expectations for airborne platforms contemplate a need for real-time monitoring of large data systems with multiple video streams (including high-definition video), high-definition sensors, and integrated high- speed avionics; c)that the 2000 Radiocommunication Assembly approved Question ITU-R 231/8, titled: "Operation of wideband aeronautical telemetry in bands above 3 GHz", with the target date of 2005; d)that those studies will provide a basis for considering regulatory changes, including additional allocations and recommendations, designed to accommodate justified spectrum requirements of aeronautical mobile telemetry consistent with the protection of incumbent services, Resolves that [WRC-07/a future competent conference] be invited to: 1consider the spectrum required to satisfy justified wideband aeronautical mobile telemetry requirements and associated telecommand above 3 GHz; 2review, with a view to upgrading to primary, secondary allocations to the mobile service in the frequency range 3-16 GHz for the implementation of wideband aeronautical telemetry and associated telecommand; 3consider possible additional allocations to the mobile service, including aeronautical mobile, on a primary basis in the frequency range 3-16 GHz for the implementation of wideband aeronautical telemetry and associated telecommand, taking into account considering d) above; designate existing mobile allocations between 16 and 30 GHz for wideband aeronautical telemetry and associated telecommand, invites ITU-R to conduct, as a matter of urgency, studies to facilitate sharing between aeronautical mobile telemetry and the associated telecommand, on the one hand, and existing services, on the other hand, taking into account the resolves above. ADDCOM7/353/7(B13/361/7) Res 230 AI 1.5

23 23


Download ppt "Darrell Ernst Gerhard Mayer February 2005 AERONAUTICAL TELEMETRY."

Similar presentations


Ads by Google