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Showing 1 to 7 of 7 for “"Sun Sensor"”.
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Digital Sun Sensor Design for Nanosatellite Applications
In 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 …
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Design, Implementation and Validation of an Attitude Determination Subsystem for Nanosatellites
… satellite of the CubeSat class by using low cost sensors. CubeSats are nanosatellites that complies a certain amount of layout criterions described by the California Polytechnic State University. A 3-axis attitude determination platform has been designed with emphasis on the use of low cost, off …
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Method and Simulation of On-Orbit Sub-microthrust Evaluation
… 10<sup>-7</sup> N on a 1U nanosat equipped with sun sensor and three-axis gyroscope, as well as physically viable at a TRL 7-9 level. Recommended next steps are modification of the post-processing technique to decrease gyroscope noise and mass restrictions or exploration of suggested alternate …
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On-Board Orbit Determination and 3-Axis Attitude Determination for Picosatellite Applications
… with a magnetic field look-up table, Sun sensors with an analytic Sun direction model, and the TRIAD method to combine vector observations into attitude information. The orbit propagator is a simple model of a circular trajectory with several frequently updated parameters and can …
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Kalman Filter Implementation to Determine Orbit and Attitude of a Satellite in a Molniya Orbit
… determining algorithm due to the accuracy of the sensor as well as the continuous measurement inputs throughout the orbit. It is shown that the accuracy of the orbit determining Kalman filter also depends on the length of time between each measurement update. The errors decrease as the time …
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Attitude Determination and Control of Nano-Satellites
… measurements via the TRIAD algorithm, while sensor noise may be rejected via the lter. Using these techniques the requirements for an e ective attitude determination and control system are met.
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Control de seguimiento solar de alta precisión con autocalibración
… work describes the development of high accuracy sun tracking control equipment, to be integrated in high concentration photovoltaic systems. In order to achieve the sub degree accuracies required by these photovoltaic concentrators, a new control approach is presented that primarily based in the …