Novel method for static pressure calibration using Unscented Kalman Filter

Limitations of Flight Path Reconstruction techniques

“…It is observed in [6] that the MLE based method is not able to estimate varying winds with altitude and hence results in poor FPR. Whereas the KF based techniques [6][7][8][9] have been shown to perform better under these conditions. In references [6][7][8][9], KF based techniques have been developed for air data calibration and accuracy determination of airdata system of a high-performance aircraft.…”

“…Whereas the KF based techniques [6][7][8][9] have been shown to perform better under these conditions. In references [6][7][8][9], KF based techniques have been developed for air data calibration and accuracy determination of airdata system of a high-performance aircraft. But in [6][7][8][9], more accurate inertial sensors have been used to calibrate the airdata sensors.…”

“…In references [6][7][8][9], KF based techniques have been developed for air data calibration and accuracy determination of airdata system of a high-performance aircraft. But in [6][7][8][9], more accurate inertial sensors have been used to calibrate the airdata sensors. Although they have been shown to work on high angles of attack with varying winds, the limitation of the techniques have not yet been evaluated.…”

“…Although they have been shown to work on high angles of attack with varying winds, the limitation of the techniques have not yet been evaluated. Also, the scale factors in the angle of attack sensors, bias and scale factors in the angle of sideslip and bias and scale factors in True Air Speed (TAS) were not estimated in [6][7][8][9]. This is because adding more states to KF led to unobservable Angle of Attack (AoA) scale factor, AoSS bias and scale factors, TAS bias and scale factors, for some of the high-performance maneuvers.…”

“…Moreover, the work reported in [6][7][8][9] did not require the estimation of above parameters as the sensors are of good quality, it is of interest to include them too in the estimation to know the limitations of MLE and KF. Most papers discuss FPR and data compatibility using flight test data [10][11][12][13][14], but the limitations with respect to maneuvers are not widely discussed.…”