Stratospheric Platform Systems (SPS) Presentation by: Dimov Stojče Ilčev Durban University of Technology (DUT) Space Science Centre (SSC) CNS Systems August 2011
SPS for Mobile CNS Applications
Stratospheric Platform Systems (SPS) for Broadband and Multimedia Despite of advances in terrestrial telecommunications technology, almost three billion of the world s population in rural locations are still without any telephone facilities. As a supplement to traditional fixed, mobile and personal satellite communications networks, SPS objects are the latest space systems using advanced digital transmission technologies offering cost-effective solutions for fixed and mobile Voice, Data and Video over IP (VDVoIP) services with speed over 150 Mb/s and up to 10 Gb/s. SPS can be used for commercial and military solutions, with particular emphasis on remote and rural coverage. The SPS objects are manned or unmanned fuelled or solar powered aircraft or airships operating in the stratosphere at about 15 30 km above the weather and commercial air traffic.
Space Satellites and Platforms
Unmanned Solar Powered Aircraft
Inter-Space Connection between Satellites and SPS or High Altitude Platforms (HAP)
Unmanned Solar Powered Airship
Coverage of SPS for Communication, Navigation and Surveillance (CNS)
Transition from Transitional Telecommunication System (TTS) to HAP
SPS Networks via Star and Mesh Topology
Possible Coverage of UK with 6 SPS
Possible Coverage of RSA with 6 SPS for Communication, Navigation and Surveillance (CNS)
Vodacom GSM Cellular Network covers South Africa with about 10,200 Towers and to each Tower belongs Theoretically about 120 Square Kilometers. However, in Reality each Vodacom Tower covers about 25 Square Kilometers, so SPS Solution is better, more reliable and Cost Effective
Integration of SPS in IMT-2000 System
Integration of GEO Satellites and SPS Stations
Broadband Network for Fixed, Mobile and Portable Solutions via SPS
SPS for Rural Solutions
SPS for Mobile and Fixed Applications
SPS Fixed Network
SPS Mobile Network
SPS Cellular Backhaul
Digital Video Broadcasting-P (DVB-P) Applications
Integration of Satellites and Platforms for DVB-P
Integration of DVB-P and DVB-T Networks
Digital Video Broadcasting- Return Channel via Platform (DVB-RCP) for Fixed Applications
Digital Video Broadcasting- Return Channel via Platform (DVB-RCP) for Mobile Applications
DVB-P for Mobile Internet
DVB-P via SPS for Urban/Rural Areas and Fast Trains
DVB-RCP via SPS for Seaports
DVB-RCP via SPS for Airports
Digital Video Broadcasting- Return Channel via Platform (DVB-RCP) for Military Applications
Mobile and Portable DVB-RCP VSAT Antennas for Military Applications
SPS Fixed and Mobile Broadband and CNS Backhaul
Aeronautical CNS via SPS
Mobile Communications via SPS
Military Communications via SPS
Maritime Communication via SPS
Maritime Navigation via SPS
Maritime Surveillance via SPS
Aeronautical Communication via SPS
Aeronautical Navigation via SPS
Aeronautical Surveillance via SPS
Maritime CNS via SPS
Aeronautical CNS via SPS
GNSS Augmentation Network via SPS The GNSS Augmented Network via SPS will be designed and implemented as the primary means for maritime course operations of ships, such as ocean crossings, navigation at open and close seas, coastal navigation, channels, passages, approachings to anchorages and harbours, and inside of seaports. It will also serve for land (road and rail) solutions, rivers and inland waters, and for flight routes in corridors, control all airport approachings and as well as managing all airplanes and vehicles movements on airports surface. It was intended to provide: 1) The transmission of integrity and health information on each GPS/GLONASS satellite in real time to ensure all users do not use faulty satellites, known as the GNSS Integrity Channel (GIC). 2) The continuous transmission of ranging signals in addition to the GIC service and to increase GPS/GLONASS signal availability. 3) The transmission of GPS or GLONASS wide area differential corrections has to increase the accuracy of civil GPS/GLONASS signals. This feature has been called the Wide Area Differential GNSS (WADGNSS).
Mobile GNSS Augmentation via SPS Network
1. Highlights of ASAS Network As observed previous figure, all mobile users (3) receive navigation signals (1) from GNSS-1 of GPS or GLONASS satellites. In the near future can be used GNSS-2 signals of EU Galileo and Chinese Compass satellites (2). These GNSS signals are also received by all Reference Stations (RS) or Ground Monitoring Stations (GMS) of integrity monitoring networks (4) operated by governmental agencies. The monitored data are sent to a regional Integrity and Processing Facility of Master Station or Ground Control Station (GCS) (5), where the data is processed to form the integrity and WADGNSS correction messages, which are then forwarded to the Primary GNSS GES (6).
2. Highlights of ASAS Network At the Ground Earth Station (GES), the navigation signals are precisely synchronized to a reference time and modulated with the GIC message data and WADGNSS corrections. The signals are sent to a SPS on the C-band uplink (7) via communication payload located aboard platform (8), the augmented signals are frequency-translated and after sent to the mobile user on GNSS L1 and new L5-band like GPS (9) and also to the C-band (10) used for maintaining the navigation signal timing loop. The timing of the signal is done in a very precise manner in order that the signal will appear as though it was generated onboard one of SPS station as a GPS or GLONASS ranging signal.
3. Highlights of ASAS Network The Secondary GNSS GES can be separate or installed in Communication CNS GES (11), as a hot standby in the event of failure at the Primary GNSS GES. The Traffic Control Centres (TCC) terminals (12) could send request for CNS information by Voice, Data and Video (VDV) on C-band uplink (13) via Communication payload located in SPS transponder and on C-band downlink (14) to mobile users (3). The mobile users are able to send augmented CNS data on L-band uplink (15) via SPS communication payload and downlink (16). The TCC sites are processing CNS data received from mobile users and displaying on the like radar screen their current positions very accurate and in the real time for traffic control and management purpose.
4. Highlights of ASAS Network The most important and unique sequence in this stage is that traffic controller can use the position data for managing certain traffic in more safe way than surveillance radar for collision avoidance, during any weather or visibility conditions. In addition, on mobile request TCC operator may send position data of each mobile in vicinity for enhanced collision avoidance (13 and 14). Each mobiles, such as ships and aircraft will be also able to provide polling of position data memorized in TCC for any adjacent mobile (ship or aircraft) and use it for enhanced collision avoidance.
Military GNSS Augmentation via SPS
SPS Equipment for Remote and Mobile Office
Functional Block Diagram of the Subscriber Equipment
Broadband Office via SPS Unit
Mobile DVB-P Onboard Equipment
Broadband Network via SPS for Fixed and Mobile Solutions
Virtual Private Network (VPN) via SPS Constellation
Fixed SPS Communications for Urban Areas
E-education via DVB-P SPS
E-medicine via DVB-P SPS
WiFi via DVB-P HAP
CNS via Integrated SPS and GEO Satellites Networks
Integrated GNSS-1 Networks
Passive GNSS Mobile Determination
Active Mobile GNSS Determination via SPS
Hybrid Mobile GNSS Determination via SPS
Mobile Platform Asset Tracking (PAT) via SPS
Military Platform Asset Tracking (PAT) via SPS
Seaport CNS via SPS
Airport CNS via SPS
Integration of Radio-AIS (R-AIS), SPS-AIS and Satellite-AIS (S-AIS) for Maritime Traffic Control and Ship Identification
Automatic Identification System (AIS) of Ships via HAP
Advantages of SPS-AIS vs R-AIS
Inter-platform AIS Network for Maritime Traffic Control and Ships Identification
Maritime Video Surveillance via SPS
SPS Infrastructure for SSP
Free Space Laser or MW Interplatform Links for Mobile Applications
Inter Platform and Satellite Links
Integration of DVB-S and DVB-P Intermodal Transportation
Inter-SPS Network for GIS, Earth Observation, Mapping, Solar Power, Disasters and Boarders Control
Integrated Satellite and SPS Networks for Meteorological Observations
Global Integrated Networks for Meteorological Observations
Space & Ground Segment for Weather Observation
Earth and Meteorological Observation via SPS
SPS Solutions for SCADA (M2M) Applications
HAP as Passenger Airship
HAP for Transport of Goods
Thanks for your attention!!! Please, any questions?!
The End Thank you for your attention! Space Science Centre (SSC) DUT CNS Systems Cell: +27 82 7650817; Tel: +27 31 3732692 E-mail: ilcev@dut.ac.za