公开(公告)号：US20250137812A1

公开(公告)日：2025-05-01

申请号：US18495462

申请日：2023-10-26

Applicant: GM Global Technology Operations LLC

Inventor： Gopinath Menta ,  Curtis L. Hay ,  Iqbal M. Surti ,  Janak kumar Dundigalla ,  Gaurav Talwar ,  Austin Lipinski ,  Todd Lee Chaney

IPC: G01C21/00 ,  G01C5/06

Abstract: A system includes data processing hardware and memory hardware in communication with the data processing hardware, the memory hardware storing instructions that when executed on the data processing hardware cause the data processing hardware to perform operations including inputting cellular range data, barometric sensor data, GNSS data, and automotive inertial data into a Kalman filter and outputting from the Kalman filter an estimate of elevation distance of a vehicle based on the cellular range data, the barometric sensor data, the GNSS data, and the automotive inertial data.