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Investigation of a command and data handling architecture for the SUNSAT-2 micro satellite

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dc.contributor.author Koekemoer JA en
dc.date.accessioned 2016-09-22T08:33:24Z
dc.date.available 2016-09-22T08:33:24Z
dc.date.submitted 2000 en
dc.identifier.uri http://hdl.handle.net/20.500.11892/29587
dc.description.abstract This thesis investigates the design of a Command and Data Handling (C&DH) system for possible use on future SUNSAT satellites. The investigation begins with a description of the underlying components of a general C&DH system, namely telemetry (TLM) and telecommand (TCMD). From the subsequent evaluation of these subsystems on SUNSAT-1, several recommendations to improve their functionality on the proposed C&DH design are made. Preliminary design specifications and requirements are then set up for the new design. The main requirements are flexibility and reliability. A logical improvement from the centralised TLM and TCMD designs used on SUNSAT-1, is identified, namely a bus architecture for the proposed C&DH system. Several bus technologies are subsequently evaluated and from this, Controller Area Network (CAN) technology is chosen as a suitable, relatively high speed serial bus. Several system architectures to implement CAN with on the C&DH system are then evaluated. The concept of CAN nodes within the C&DH system is explained, and from this, the detail of such a node is presented, designed, and implemented in the form of a prototype hardware system. The performance of the prototype is then evaluated against the set specifications and requirements. Other work related to the design of a C&DH system covered in this document, includes the evaluation of several international TLM and TCMD standards. From these, the recommendations of the Consultative Committee for Space Data Systems (CCSDS) are identified as a possible down- and uplink protocol on future satellites. en
dc.language English en
dc.subject Electrical and Electronic engineering en
dc.title Investigation of a command and data handling architecture for the SUNSAT-2 micro satellite en
dc.type Masters degree en
dc.description.degree MSc (Ing) (Elektroniese Ingenieurswese) en


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