EUTELSAT: POWERING THE FUTURE THROUGH POWERING THE FUTURE THROUGH INNOVATION . ... geostationary...

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Transcript of EUTELSAT: POWERING THE FUTURE THROUGH POWERING THE FUTURE THROUGH INNOVATION . ... geostationary...

  • EUTELSAT: POWERING THE FUTURE THROUGH INNOVATION Yohann Leroy, Chief Technical Officer, Eutelsat

  • INNOVATION - PART OF EUTELSATS DNA

    Innovation is a key element for success in a very competitive telecommunication market Eutelsat has always been at the forefront of satellite innovation 1984: First transmission in DVB-S standard

    1996: Development of DiSEqC standard

    2000: First satellite with electrical propulsion (E16C)

    2000 & 2002: Maiden flights of Atlas 3, Atlas V, Delta IV

    2002: First satellite with on-board multiplexing

    2003: First HD demo channel

    2004: First satellite with Lithium-Ion batteries

    2010: Highest capacity satellite ever launched (KA-SAT)

    2013: First UHD demo channel

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  • Innovation - all about finding the right balance between creativity and rigor Open innovation Continuous effort in collaboration with customers and

    other external partners: research institutes, work shops, etc.

    Evolution of the offer in our core market but also objective to address new or emerging markets (e.g. Internet of Things)

    Invest into highly innovative projects and companies

    Looking beyond the satellite itself Satellite is part of a system including ground segment

    Innovation can be at satellite level, but it can also be on

    the ground, in products and services or in the interaction between the satellite and the ground equipment

    INNOVATION - PART OF EUTELSATS DNA

    3

  • EUTELSAT IS FOCUSED ON FOUR INNOVATION PRIORITIES

    4

    IN SPACE ON GROUND

    Improve the value-for-money of our capacity

    Electric propulsion New multi-spot HTS architectures

    developed for fast growing markets

    New encoding schemes for higher compression

    Enhanced access protocols for Interactive TV satellite services

    Ensure protection of satellite communications

    Signal prevention / detection techniques Increased resilience to jamming

    Increase the flexibility of our satellite resources

    Reconfigurable satellite payloads On board power allocation to optimize

    commercial capacity

    Multi-band reception systems C/Ku, Ku/Ka Hybrid set-top boxes

    Enhance end-user experience

    Smart LNB for DTH Connected TV - low cost terminal for consumer market

    Multi-screen home IP distribution Home Automation and Internet of Things Mobile broadband (Eutelsat Air Access)

  • EUTELSAT - 4 INNOVATION PRIORITIES

    Improve the value-for-money of Eutelsat satellite capacity

    Ensure protection of satellite communications Increase the flexibility of our satellite resources

    Enhance end-user experience

    5

  • EUTELSAT - 4 INNOVATION PRIORITIES

    Improve the value-for-money of Eutelsat satellite capacity Electric propulsion High Throughput satellites Ensure protection of satellite communications Increase the flexibility of our satellite resources Enhance end-user experience

    6

  • PROPULSION IS REQUIRED FOR ORBIT RAISING AND STATION KEEPING

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    Reach geostationary orbit following launch

    V~ 1500m/s

    Geostationary Orbit

    Geostationary Transfer Orbit

    APOGEE

    Altitude 35,786 km Radius=42,164 km Inclination=0 deg.

    PERIGEE

    Stay in geostationary orbit or change orbital location

    V~ 50m/s per year

    Inclined orbit plane

    Equatorial orbit plane

    N

    S Inclination angle

    Satellite thrust manoeuvre to move inclined orbit to e.g.

    equatorial orbit

  • Chemical propulsion Electric propulsion

    TWO TYPES OF PROPULSION SYSTEM EXIST

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    Propellant tanks

    Thrusters Apogee Engine

    Thrusters

    PPU

  • ELECTRIC PROPULSION IS A GAME CHANGER, THANKS TO THE MASS SAVINGS IT INDUCES

    More than 50% of the mass of a chemical propulsion satellite is made of propellant Electric propulsion is much more efficient than chemical propulsion The thrust per kilogram of propellant is much

    higher with electric than with chemical propulsion

    This can be used in two ways Either to reduce the mass of the satellite Or to increase the number of payload

    equipment on-board or a mix of both

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  • ELECTRIC PROPULSION IS A WELL PROVEN TECHNOLOGY BUT WAS NOT USED SO FAR FOR ORBIT RAISING

    Electric propulsion is well-proven technology Eutelsat is for example operating satellites using

    electric propulsion for station-keeping since 2000

    Electric propulsion was so far not used by commercial satellite operators for orbit raising Electric propulsion is more efficient, but less

    powerful than chemical propulsion As a result, reaching the geo orbit takes longer in

    electric than in chemical propulsion and time is money!

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    SESAT 1

    KA-SAT

  • Electric propulsion satellites can be launched with Ariane 5 in the lower position, but this was the only cost-effective solution With the arrival of the Falcon 9 rocket from SpaceX, satellite operators now have two options Savings in launch costs compensate delayed OSD, and mass savings gives some room of manoeuver to enhance the satellite performance (higher power to improve the bit/s/Hz ratio, more flexibility,)

    SPACEX HAS CHANGED THE RULE OF THE GAME

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    Ariane V

    Falcon 9

  • EUTELSAT - 4 INNOVATION PRIORITIES

    Improve the value-for-money of Eutelsat satellite capacity Electric propulsion High Throughput satellites Ensure protection of satellite communications Increase the flexibility of our satellite resources Enhance end-user experience

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  • KA-SAT, launched in 2010 over Europe was the highest capacity commercial satellite ever built Ka-band HTS Capacity over Latin America will be put into service in first half 2016 with EUTELSAT 65 West A Ka-band is the band of choice for consumer broadband HTS. For other verticals, it all depends on the trade-off between availability and cost of bandwidth

    EUTELSAT - A PIONEER OF HTS CAPACITY

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    EUTELSAT 65 West A

  • F1 F2 F1 F2

    (Polarisation 1)

    (Polarisation 2)

    HTS Payload Total Bandwidth = 4.5 GHz (18x250MHz) High

    Throughput Satellite

    Capacity of a satellite is limited by the amount of spectrum it can operate

    With traditional wide-beam satellites, each frequency can be used only once

    If coverages are tighter, then the same frequency can be used over separate zones, without creating interferences

    HTS - FREQUENCY RE-USE COMBINED WITH SPOTBEAMS

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    FSS/BSS Satellite

    Conventional FSS Payload Total Bandwidth = 1.0 GHz (4x250 MHz)

    F1 F2 F1 F2

    (Polarisation 1)

    (Polarisation 2)

  • LEO CONSTELLATIONS - A COMPLEMENT TO GEO HTS SYSTEMS

    LEO constellations is something Eutelsat is currently looking at The main benefit of LEO orbit is that it reduces the latency compared to GEO

    Cost of an LEO satellite part of a constellation is expected to be much lower than GEO Standardized design and manufacturing in

    series Satellite failures in a large constellation can

    be more easily accommodated But GEO satellites design and manufacturing

    process are expected to benefit as well from industrial progress brought by LEO

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  • LEO CONSTELLATIONS NOTICEABLE ADVANTAGES

    But: Most Internet applications, in particular the

    most bandwidth-hungry ones, are not latency sensitive

    Unlike GEO, LEO satellites are not fixed. Three negative consequences: LEO satellites fly most of the time above regions

    where there is nobody to serve. Tracking antennas are needed. To serve a given region, you need a lot of LEO

    satellites up and running from day 1

    Specific space debris mitigation plans will also need to be set up as in LEO, the risk of collision is much higher than in GEO, and with a large constellation, this risk increases exponentially and chain reaction could occur

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  • EUTELSAT - 4 INNOVATION PRIORITIES

    Improve the value-for-money of Eutelsat satellite capacity Electric propulsion High Throughput satellites Ensure protection of satellite communications Increase the flexibility of our satellite resources Enhance end-user experience

    17

    Eutelsat Q

    uan

    tum

  • Eutelsat satellite are designed such that they incorporate flexibility features: ability to change orbital location, coverages, frequency plan We need flexibility to adapt to market uncertainties, and market evolution over the 15 years of a typical satellite lifetime Flexibility can be dealt with at satellite level, but also at fleet level. This is much easier for satellite operators with a large fleet of satellites We believe flexibility at satellite and fleet level has value for the customer as well

    FLEXIBILITY: IMPORTANT FOR US AND FOR OUR CUSTOMERS

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  • EUTELSAT QUANTUM: BRIEF OVERVIEW

    Courtesy Airbus Defence & Space

  • Today, classical satellites are defined by static definitions: its coverage (pattern generated mechanically) its amplification chains ( transponders )one amplifier per chain its frequency plan (depends on ITU region and applications: TV, internet, governmental,

    news gathering, etc.)

    These are optimized to best meet market requirements and evolution forecast. Has worked very well and will continue to do so, but: Applications need to adapt to the satellite resources in orbit Higher flexibility is key in fleet management (relocation of satellites along the

    geostationary arc, for r