UAV High-Precision Navigation review: Research Advances in Multi-Sensor Fusion Technology with IMU, Vision and UWB

Benbo Cao

doi:10.54097/fkfvxv13

Authors

Benbo Cao

DOI:

https://doi.org/10.54097/fkfvxv13

Keywords:

High-precision UAV Navigation, Multi-sensor Fusion, GNSS-denied Navigation, IMU, Vision, UWB

Abstract

Precise positioning systems are crucial for unmanned aerial vehicle (UAV) autonomous operations, playing an indispensable role in various practical applications. Notwithstanding their widespread utility, traditional Global Navigation Satellite System (GNSS) implementations encounter substantial constraints when operating in signal-deprived settings, including densely built-up urban corridors and enclosed interior spaces. Multi-sensor fusion technology effectively integrates complementary advantages of Inertial Measurement Unit (IMU), vision, and Ultra-Wideband (UWB) sensors. This approach significantly enhances positioning accuracy and system reliability while improving adaptability to complex operational environments. This study systematically reviews high-precision UAV navigation systems incorporating IMU, vision, and UWB technologies. It provides in-depth analysis of respective advantages and limitations of each technology, while offering perspectives on future development directions.

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References

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