Investigation into Performance Characteristics of Frequency Domain INS Calibration Procedure under Noisy GPS Environments

Andrey Soloviev and Frank van Graas

Abstract:	Frequency-domain calibration techniques are developed and applied to improve characteristics of the INS calibration procedure. The frequency-domain INS calibration separates spectrums of calibrated parameters by processing blocks of GPS carrier phase measurements and INS navigation frame accelerations. The paper demonstrates that the frequency-domain approach optimizes the usage of motion dynamics for the separation of calibrated parameters under noisy GPS measurements. As a consequence, the convergence time of Kalman filters that smooth separated calibrated parameters is significantly reduced. A vehicle thus needs to go through considerably fewer maneuvers to enable calibration of inertial systems in flight, if the frequency-domain calibration approach is implemented.
Published in:	Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002) September 24 - 27, 2002 Oregon Convention Center Portland, OR
Pages:	1454 - 1463
Cite this article:	Soloviev, Andrey, van Graas, Frank, "Investigation into Performance Characteristics of Frequency Domain INS Calibration Procedure under Noisy GPS Environments," Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002), Portland, OR, September 2002, pp. 1454-1463.
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