公开(公告)号：US20240077315A1

公开(公告)日：2024-03-07

申请号：US17901255

申请日：2022-09-01

Applicant: DANIEL A. TAZARTES ,  NEAL JOSEPH DAHLEN

Inventor： DANIEL A. TAZARTES ,  NEAL JOSEPH DAHLEN

IPC: G01C21/16 ,  G01B11/27

CPC classification number: G01C21/1656 ,  G01B11/27

Abstract: One example includes a navigation system. The navigation system includes an inertial navigation system (INS) that is configured to provide a coordinate frame corresponding to an inertial reference of the INS relative to a geodetic coordinate system. The coordinate frame includes a reference axis that defines a reference orientation of the INS. The system also includes an optical tracking device configured to obtain a reference image to determine an orientation of a boresight axis of the optical tracking device. The system further includes an alignment controller configured to compare the reference axis based on the coordinate frame and the boresight axis based on the reference image to determine an angular misalignment between the reference axis and the boresight axis, and to adjust the reference orientation to align the reference axis to the boresight axis based on the determined angular misalignment.