Fixed-Interval Smoothing Post-Processing Algorithms Based on
Tightly Coupled Carrier Phase DGNSS/INS Method
1 College of Navigation and Aerospace Engineering, Information Engineering University, 62 Kexue Road, Zhengzhou 450052,China
2 71687 Troops, Xinxiang 453000,China
Abstract Aiming at the high precision requirements of position and orientation, a post-processing algorithm based on tightly coupled carrier phase DGNSS/INS and smoothing is proposed. Ambiguities in resolution, navigation status errors and IMU errors are estimated by two Kalman filters| RTS smoothing is used in data post-processing. Test results indicate that high precision positioning and orientation can be achieved, and that the algorithm is an effective data processing method.
