Gyroscope-Aided Odometry Navigation Using a Highly-Precise Automotive MEMS IMU Complemented by a Low-Cost Sensor Array

Blocher, Lukas; Mayer, Wolfram; Vujadinović, Miloš; Haack, Jonas; Hofele, Johannes; Radović, Dušan; Hiller, Tobias; Gerlach, Joachim; Bringmann, Oliver

doi:10.1109/inertial53425.2022.9787758

Cited by 4 publications

(1 citation statement)

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“…Considering the prototypes at the medium/low technology readiness level (TRL), the BIS of the state-of-the-art is on the order of 0.01 • /h (typically at constant room temperature) [25], [26], at the border between intermediate and navigation grades. Although the R&D effort aimed at demonstrating and transferring to market MEMS navigation-grade gyroscopes has been impressive, to our knowledge, the application of such gyroscopes in real-world INSs intended for aerospace and defense is limited to only a few examples, especially in the field of autonomous vehicles [27], [28].…”

Section: Introductionmentioning

confidence: 99%

Miniaturization of Interferometric Optical Gyroscopes: A Review

Dell’Olio,

Natale,

Wang

et al. 2023

IEEE Sensors J.

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Gyroscopes are inertial sensors whose field of application is rapidly expanding. The growing interest in autonomous systems, CubeSats as well as their constellations, and unmanned vehicles is stimulating a strong interest in miniaturized gyroscopes for integration in inertial units with a volume smaller than 100 cm 3 . Some of these applications require gyroscopes that are highly immune to disturbances, especially vibrations, mechanical shocks, and radiation. In these application contexts, the use of microelectromechanical gyroscopes is often avoided in favor of sensors without moving parts, such as optical gyroscopes based on the Sagnac effect. The technology of interferometric optical gyroscopes is currently considered to be potentially capable of enabling the development of highly innovative angular velocity sensors, which are simultaneously inertial grade and miniaturized. This paper critically examines the scientific and R&D activity aimed at miniaturization of interferometric optical gyroscopes, focusing on recent results, perspectives, and physical limitations. Interferometric optical gyroscopes with dimensions similar to those of microelectromechanical gyroscopes and better performance than the latter in terms of immunity to disturbances have not yet been demonstrated, but this paper shows how this goal could be realistically achieved in the medium term through the use of integrated microphotonics. This paper compares the technology being analyzed with the competitive technologies, highlighting their strengths and limitations.

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