In-flight calibration of magnetometers and low-cost SINS for small land-survey satellite


Somov Y., Hacızade C.

6th International Conference on Electronics, Computers and Artificial Intelligence, ECAI 2014, Pitesti, Romania, 23 - 25 October 2014, pp.1-7 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/ecai.2014.7090189
  • City: Pitesti
  • Country: Romania
  • Page Numbers: pp.1-7
  • Keywords: attitude determination, in-flight calibration, magnetometer, small satellite, strap-down inertial navigation system, sun and magnetic sensors
  • Istanbul Technical University Affiliated: Yes

Abstract

Magnetometers are widely used for attitude determination of the low Earth orbit satellites. In order to estimate the satellite attitude accurately, bias of magnetometer must be estimated. In this study a linear Kalman filter based algorithm for estimation of magnetometer biases is proposed. We present computer technology for onboard signal processing and in-flight calibration of a low-cost strap-down inertial navigation system (SINS) for small land-survey satellite. For the system with small financial expenditures on practical implementation, the requirements are not severe on accuracy of the attitude determination. In this situation, we have applied the SINS correction based on signals of a Sun optoelectronic sensor and magnetometer.