Digital Sun Sensor Design for Nanosatellite Applications

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dc.contributor.advisorLee, Regina S. K.
dc.contributor.authorBolshakov, Konstantin
dc.date.accessioned2020-08-11T12:37:38Z
dc.date.available2020-08-11T12:37:38Z
dc.date.copyright2020-01
dc.date.issued2020-08-11
dc.date.updated2020-08-11T12:37:38Z
dc.degree.disciplineElectrical and Computer Engineering
dc.degree.levelMaster's
dc.degree.nameMASc - Master of Applied Science
dc.description.abstractIn this research a novel, semi-custom design of a Sun sensor, based on the orthogonal photodiode array design approach, applicable for nanosatellites and other small spacecraft is proposed. A common and well-known strategy of application of a geometrical aperture mask on the light detectors is improved upon and utilised in a non-conventional fashion in the design presented in this thesis. The main characteristic of this design, that is investigated in this work, is the inclusion of a chirped pattern of slits, while using a digital readout of the photodiode arrays. This pattern is expected to allow greater angle detection accuracy while digital photodiode readout decreases complexity and power consumption. The array based design approach is chosen due to lower power requirements, mass savings and simpler readout interface and signal processing in comparison to the matrix based approach. The Sun sensor design presented maximises the accuracy, while keeping the cost, development and implementation time and complexity to minimum. The design will be demonstrated on DESCENT mission CubeSat as a part of the Moth-Eye Anti-Reflective solar cell coating payload. The characterisation of the non-calibrated manufactured part shows that the sensor is capable of 1 degree accuracy, which is expected to improve to under 0.5 degrees with calibration and sensor data processing.
dc.identifier.urihttp://hdl.handle.net/10315/37683
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectComputer engineering
dc.subject.keywordsNanosatellite
dc.subject.keywordsCubeSat
dc.subject.keywordsSun Sensor
dc.subject.keywordsDiode Array
dc.subject.keywordsPhotodiode
dc.subject.keywordsAperture Mask
dc.subject.keywordsLight Pattern
dc.titleDigital Sun Sensor Design for Nanosatellite Applications
dc.typeElectronic Thesis or Dissertation

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