Optimal Calibration Method of PIGA’s Orthogonal Poses for Gravity Field Testing

Table 2

Comparative analysis of advantages of the two calibration schemes.

Calibration schemes	Equal angle sequence	Equal acceleration sequence
Advantages	(1) When the number of test position i > 9, the value of is lower	(1) The calibration uncertainties of bias and scale factor is lower
	(2) When the number of test position i > 20, the value of is lower	(2) When the number of test position i < 9, the value of is lower
	(3) The total test time is shorter	(3) When the number of test position i < 20, the value of is lower