Pure Inertial Navigation in Challenging Environments with Wheeled and Chassis Mounted Inertial Sensors

• URL: http://arxiv.org/abs/2601.00275v1
• Date: Thu, 01 Jan 2026 09:28:05 GMT
• Title: Pure Inertial Navigation in Challenging Environments with Wheeled and Chassis Mounted Inertial Sensors
• Abstract summary: We propose WiCHINS, a wheeled and chassis inertial navigation system.<n>We derive a three-stage framework, each with a dedicated extended Kalman filter.<n>We demonstrate an average position error of 11.4m, which is $2.4%$ of the average traveled distance.
• Score: 3.956118462195485
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Autonomous vehicles and wheeled robots are widely used in many applications in both indoor and outdoor settings. In practical situations with limited GNSS signals or degraded lighting conditions, the navigation solution may rely only on inertial sensors and as result drift in time due to errors in the inertial measurement. In this work, we propose WiCHINS, a wheeled and chassis inertial navigation system by combining wheel-mounted-inertial sensors with a chassis-mounted inertial sensor for accurate pure inertial navigation. To that end, we derive a three-stage framework, each with a dedicated extended Kalman filter. This framework utilizes the benefits of each location (wheel/body) during the estimation process. To evaluate our proposed approach, we employed a dataset with five inertial measurement units with a total recording time of 228.6 minutes. We compare our approach with four other inertial baselines and demonstrate an average position error of 11.4m, which is $2.4\%$ of the average traveled distance, using two wheels and one body inertial measurement units. As a consequence, our proposed method enables robust navigation in challenging environments and helps bridge the pure-inertial performance gap.

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