Bilinear interpolation calibration technology for fast steering mirror
In order to meet the need of high pointing accuracy of fast steering mirror in photoelectric system,the two-dimensional Angle calibration technology of fast steering mirror based on eddy current sensor is studied.The work-ing principle of two-dimensional Angle measurement using eddy current sensor is analyzed,and a fast steering mirror Angle calibration system is designed.Two calibration models,polynomial fitting and bilinear interpolation,are ana-lyzed theoretically and tested experimentally.The results show that the calibration error of the bilinear interpolation method is within 2"in the angle range of±1 000",which is higher than the traditional calibration accuracy of the poly-nomial fitting method.The improvement of calibration accuracy is of great significance for realizing high precision pointing of fast steering mirror.
fast steering mirrorsystem calibrationbilinear interpolationeddy current sensor
万方数据
维普
