DENG Zhi-hong, WANG Yue-peng, FU Meng-yin, et al. Application of adaptive Kalman filter in process of laser gyro drift data[J]. 2007, (2): 25-27. DOI: 10.13873/j.1000-97872007.02.008.
According to the characteristics of laser gyro drift data
two innovations are presented to avoid the deficiencies of Sage-Husa adaptive Kalman filter.The first innovation simplifies Sage-Husa adaptive Kalman filter to estimate system process noise only.The second is parallel Sage-Husa adaptive filter which estimates the statistical features of the unknown time-varying system process noise and measurement noise separately.The result of simulation shows that two algorithms are useful and effective with high precision.