Knowledge base Current: Integrated Motion & Navigation sensors PDF Download PDF Download page Integrated Motion & Navigation sensors. Current page Include child pages All pages Integrated Motion & Navigation sensors In this section, you will learn about how integrated navigation and motion sensors are designed, and GNSS technology. Vertical Reference Unit (VRU/MRU) Attitude & Heading Reference System (AHRS) Inertial Navigation System (INS) Ship Motion Measurements GNSS Real time vs Post-Processed Operation ×