Calibration of strapdown magnetic vector measurement systems based on a plane compression method

Abstract The strapdown magnetic vector measurement system, which can measure the and attitude of a magnetometer simultaneously, has wide applications in geophysical prospecting, etc. Calibration systematic errors, including errors misalignment is essential for this system. Traditional methods calibrate these two separately, with problem cumbersome steps being dependent on special data acquisition methods, such as rotation. An original method that combines plane compression an ellipsoid fitting proposed paper, simultaneously complete calibration calculation error one experiment. be performed using spatial scatter point required by traditional attitude-independent method, no additional mechanical equipment required. A mathematical analysis to study elements decreasing accuracy numerical simulation field experiments are validate analysis. results indicate contribute improvement systems.