Magnetometer and Gyroscope Calibration Method with Level Rotation

A Simple and Fast Method for Field Calibration of Triaxial Gyroscope by using Accelerometer

Camera Calibration with Known Rotation

We address the problem of using external rotation information with uncalibrated video sequences. The main problem addressed is, what is the benefit of the orientation information for camera calibration? It is shown that in case of a rotating camera the camera calibration problem is linear even in the case that all intrinsic parameters vary. For arbitrarily moving cameras the calibration problem...

Rotation sensing with a dual atom-interferometer Sagnac gyroscope

We reports improvements to our Sagnac effect matter-wave interferometer gyroscope. This device now has a short-term rotation-rate sensitivity of 6×10−10 rad s−1 over 1 s of integration, which is the best publicly reported value to date. Stimulated Raman transitions are used to coherently manipulate atoms from counterpropagating thermal beams, forming two interferometers with opposite rotation p...

Attitude-Independent Magnetometer Calibration with Time-Varying Bias

We present a method for on-orbit, attitudeindependent magnetometer calibration that includes the effect of time-varying bias due to electronics on-board a spacecraft. The calibration estimates magnetometer scale factors, mis-alignments, and constant as well as time-varying bias. Timevarying effects are mitigated by including spacecraft telemetry in the measurement model and estimating constant ...

Precision Rotation Measurements with an Atom Interferometer Gyroscope

Matter-wave interferometry has the potential to be an extremely sensitive probe for inertial forces. For example, neutron interferometers have been used to measure the rotation of the Earth [1] and the acceleration due to gravity [2]. More recently, atom interference techniques have been used in demonstration experiments to measure rotations [3] and accelerations [4]. In this Letter, we present...