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SIF #2: 4.2 - Sofware Defined Radio for Advanced Satellite Ground Stations

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Sofware Defined Radio for Advanced Satellite Ground Stations, innovation project by Ph.D. candidate Moses Browne Mwakyanjala, main supervisor Prof Reza Emami, assistant supervisor prof. Jaap van de Beek and SSC coordinators Petrus Hyvönen & Christer Jonsson

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SIF #2: 4.2 - Sofware Defined Radio for Advanced Satellite Ground Stations

  1. 1. Software Defined Radio for Advanced Satellite Ground Stations Moses Browne Mwakyanjala Onboard Space System Luleå University of Technology Main Supervisor Prof. Reza Emami Assistant Supervisor Prof. Jaap van de Beek Coordinator Petrus Hyvönen, Christer Jonsson
  2. 2. Outline • Introduction • Project background • Problem definition • Design parameters
  3. 3. Introduction • Three principal components of a satellite communication system – Space segment – Ground segment – Control segment
  4. 4. Introduction (cont’d)
  5. 5. Project background • Swedish Space Corporation and Lulea University of Technology • Goal : Development of an advanced baseband system for SSC’s control segments. • Technology : Software-defined radio (SDR)
  6. 6. Project background(cont’d)
  7. 7. Project background(cont’d)
  8. 8. Project background(cont’d)
  9. 9. Problem definition • The design of an SDR-based baseband system with advanced features – Cognitive radio capability – Multi-point capability – Support for distributed satellite ground stations systems – Mobility
  10. 10. Problem definition - Cognition
  11. 11. Problem definition - Multipoint
  12. 12. Problem definition - distributivity
  13. 13. Design parameters • Use of a free SDR application framework • Use of a commercial SDR application framework • In-house SDR application framework
  14. 14. Design parameters – Free application frameworks Advantages • No cost e.g. GNU Radio • Can be modified and redistributed • Less development time Disadvantages • Unreliable • Poor documentation • Poor support • Inadequate development tools
  15. 15. Design parameters – Commercial application frameworks Advantages • Reliable • Well documented • Good development tools • Less development time Disadvantages • Can be costly • Licensing may hinder modification and redistribution • May be tied to specific hardware • Bloated with unnecessary features
  16. 16. Design parameters – In-house application framework Advantages • Full ownership • Low cost compared to commercial frameworks • More reliable than free application frameworks • The work can be simplified by “borrowing” code from free application frameworks Disadvantages • Time consuming[man hours] • Higher maintenance cost
  17. 17. Thank you Questions?

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