Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Metrology and Measurement Systems

1 2018

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: in-flight alignment

Sortuj według:

Ogranicz wyniki do:

Estimation of small uav position and attitude with reliable in-flight initial alignment for MEMS inertial sensors

Wang D., Dong Y., Li Q., Wu J., Wen Y.

Metrology and Measurement Systems

2018

Vol. 25, nr 3

603--616

The advance of MEMS-based inertial sensors successfully expands their applications to small unmanned aerial vehicles (UAV), thus resulting in the challenge of reliable and accurate in-flight alignment for air-borne MEMS-based inertial navigation system (INS). In order to strengthen the rapid response capability for UAVs, this paper proposes a robust in-flight alignment scheme for airborne MEMS-INS aided by global navigation satellite system (GNSS). Aggravated by noisy MEMS sensors and complicated flight dynamics, a rotation-vector-based attitude determination method is devised to tackle the in-flight coarse alignment problem, and the technique of innovation-based robust Kalman filtering is used to handle the adverse impacts of measurement outliers in GNSS solutions. The results of flight test have indicated that the proposed alignment approach can accomplish accurate and reliable in-flight alignment in cases of measurement outliers, which has a significant performance improvement compared with its traditional counterparts.