Small satellites use commercial off-the-shelf sensors and actuators for attitude determination and control (ADC) to reduce the cost. These sensors and actuators are usually not as robust as the available, more expensive, space-proven equipment. As a result, the ADC system of small satellites is more vulnerable to any fault compared to a system for larger competitors.
Reconfigurable TRIAD+UKF approach for attitude estimation and complete magnetometer calibration.
This research aims at designing fault tolerant attitude determination and control algorithms for small satellites. Specific problems that are being investigated includes:
- Adaptive/robust attitude filtering algorithms
- Real-time sensor calibration methods
- Back-up algorithms for spacecraft attitude estimation & control
- Estimation of spacecraft dynamics parameters, dynamic disturbances and environmental variations
- Reconfigurable algorithms for automony
Further reading:
- C. Hajiyev and H.E. Soken, “Fault Tolerant Attitude Estimation for Small Satellites,” CRC Press, US, 2020 (CRC / Amazon)
- S. N. Sozen, M. Gokce, H.E. Soken, C. Yavuzyilmaz, and F. Gulmammadov, “Measurement Correction of a Set of Analog Sun Sensors via Neural Network,” in Proc. 8th IEEE International Workshop on Metrology for Aerospace, Virtual, 2021.
- H.E. Soken, M. E. Cetin and S. Sakai, “Attitude-Independent Magnetometer Calibration for Spinning Spacecraft Using Quasi-Measurements,” in Proc. AAS/AIAA Astrodynamics Specialist Conference, Virtual, 2020, AAS 20-501
- H.E. Soken and S. Sakai, “Attitude estimation and magnetometer calibration using reconfigurable TRIAD+filtering approach”, Aerospace Science and Technology, Vol.99, 2020. DOI: 10.1016/j.ast.2020.105754
- H.E. Soken, “A Survey of Calibration Algorithms for Small Satellite Magnetometers” Measurement, vol.122, pp.417-423,2018. DOI: 10.1016/j.measurement.2017.10.017
- H.E. Soken, “An Attitude Filtering and Magnetometer Calibration Approach for Nanosatellites” International Journal of Aeronautical and Space Sciences, vol.19, no.1, pp.164-171, 2018 .DOI: 10.1007/s42405-018-0020-8
- H.E. Soken, S. Sakai and R. Wisniewski, “In-Orbit Estimation of Time-Varying Residual Magnetic Moment,” IEEE Transactions on Aerospace and Electronic Systems, vol. 50, no.4, pp. 3126-3136, 2014, DOI: 10.1109/TAES.2014.130225
- H.E. Soken and C. Hajiyev, “Pico Satellite Attitude Estimation via Robust Unscented Kalman Filter in the Presence of Measurement Faults,” ISA Transactions, vol.49, no. 3, pp. 249-256, 2010. DOI: 10.1016/j.isatra.2010.04.001