Underwater Integrated Navigation

Precise Time Delay Measurement and Compensation for Tightly Coupled Underwater SINS/piUSBL Navigation
Precise Time Delay …

Research Overview

Time misalignment between acoustic positioning systems and inertial navigation sensors is a critical yet often underappreciated source of error in underwater integrated navigation. This work proposes a tightly coupled SINS/piUSBL/depth gauge navigation framework that explicitly …

A DVL-Aided Loosely Coupled Inertial Navigation Strategy for AUVs with Attitude Error Modeling and Variance Propagation
A DVL-Aided Loosely …

Research Overview

Loosely coupled SINS/DVL architectures are widely adopted in autonomous underwater vehicles due to their simplicity and robustness, yet their long-term performance is often limited by attitude estimation errors. This work proposes a DVL-aided loosely coupled inertial navigation …