[7] YUAN J D, HE Y, ZHANG B, et al.. Alignment of beam position monitors in cryomodule of CADS injector II [J]. Nuclear Science and Techniques, 2017, 28(6): 75.
[21] CALKINS J M.Quantifying Coordinate Uncertainty Fields in Couple Spatial Measurement System [D]. Blacksburg, Virginia: Virginia Polytechnic Institute and State University, 2002.
[22] PREDMORE R.Bundle adjustment of multi-position measurements using the Mahalanobis distance [J]. Precision Engineering, 2010, 34(1): 113-123.