Strapdown inertial navigation systems based on fiber-optic gyroscopes

Korkishko, Yu. N.; Fedorov, V. A.; Prilutskii, V.; Ponomarev, V. G.; Morev, I. V.; Skripnikov, S. F.; Khmelevskaya, M. I.; Buravlev, A. S.; Кострицкий, С. М.; Fedorov, I. V.; Zuev, A.I.; Varnakov, V. K.

doi:10.1134/s2075108714040154

Cited by 23 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In such a way, the overall accumulated optical Sagnac effect is multiplied by the number of turns [ 10 ]. Due to reasonably precise rotational rate information and rigid design [ 11 ], FOGs are currently widely applied in inertial navigation systems [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Rotation Active Sensors Based on Ultrafast Fibre Lasers

Kudelin

Sugavanam

Chernysheva

2021

Sensors

View full text Add to dashboard Cite

Gyroscopes merit an undeniable role in inertial navigation systems, geodesy and seismology. By employing the optical Sagnac effect, ring laser gyroscopes provide exceptionally accurate measurements of even ultraslow angular velocity with a resolution up to 10−11 rad/s. With the recent advancement of ultrafast fibre lasers and, particularly, enabling effective bidirectional generation, their applications have been expanded to the areas of dual-comb spectroscopy and gyroscopy. Exceptional compactness, maintenance-free operation and rather low cost make ultrafast fibre lasers attractive for sensing applications. Remarkably, laser gyroscope operation in the ultrashort pulse generation regime presents a promising approach for eliminating sensing limitations caused by the synchronisation of counter-propagating channels, the most critical of which is frequency lock-in. In this work, we overview the fundamentals of gyroscopic sensing and ultrafast fibre lasers to bridge the gap between tools development and their real-world applications. This article provides a historical outline, highlights the most recent advancements and discusses perspectives for the expanding field of ultrafast fibre laser gyroscopes. We acknowledge the bottlenecks and deficiencies of the presented ultrafast laser gyroscope concepts due to intrinsic physical effects or currently available measurement methodology. Finally, the current work outlines solutions for further ultrafast laser technology development to translate to future commercial gyroscopes.

show abstract

Section: Introductionmentioning

confidence: 99%

Rotation Active Sensors Based on Ultrafast Fibre Lasers

Kudelin

Sugavanam

Chernysheva

2021

Sensors

View full text Add to dashboard Cite

show abstract

“…where k 0 � 2π/λ and Im(n eff ) is the imaginary part of the effective refractive index of the desired mode. When the thickness is determined as th 1 � 1.37 μm and th 2 � 1.18 μm, the fiber resonance wavelength can be determined to be 1427 nm and 1229 nm according to formula (1). A high loss area is formed near the resonant wavelength.…”

Section: Structure and Methodsmentioning

confidence: 99%

“…High-precision fiber optic gyroscopes have extremely important military and commercial application values [1,2], and high-birefringence fiber as a core element has always been the focal point of scientific research. e sensitive ring is the core component of the fiber optic gyroscope made of polarization-maintaining fiber.…”

Section: Introductionmentioning

confidence: 99%

Study on the High-Birefringence Hollow-Core Anti-Resonant Fiber with Semicircular Cladding

Liu

et al. 2021

International Journal of Optics

View full text Add to dashboard Cite

For the purpose of satisfying the demands of polarization-maintaining fibers for fiber optic gyroscopes, this article proposes a semicircular cladding birefringent hollow-core anti-resonant fiber. The influence of structural parameters on the birefringence, loss, and bending loss of the fiber is studied. The simulation results demonstrate that at 1550 nm, the ultimate loss of the fundamental mode of x and y polarization is 1.76 dB/m and 0.93 dB/m, respectively. The birefringence can reach 1 × 10−4, and the wavelength range of birefringence greater than 10−4 can reach 60 nm. This indicates that it has excellent bending properties. The proposed optical fiber has excellent performance in polarization maintenance and can supply ideas for the research of high-precision fiber optic gyroscopes and other optical devices.

show abstract

“…where α SVM i and b s can be solved by equation (8). The input of the nonlinear regression model is the output of the feature extraction model.…”

Section: B Ls-svm Based Nonlinear Regression Modelmentioning

confidence: 99%

“…For land vehicles, the highly accurate heading angle can be acquired by using high-quality fiber-optic gyro [8]. However, the high cost and government regulations impede the commercial use of that sensor [9].…”

Section: Introductionmentioning

confidence: 99%

A Novel Heading Angle Estimation Methodology for Land Vehicles Based on Deep Learning and Enhanced Digital Map

Sun

et al. 2019

IEEE Access

View full text Add to dashboard Cite

In this paper, a novel heading angle estimation methodology for land vehicles using lowcost sensors is proposed by combining the advantages of deep learning and enhanced digital map. First, an intelligent perception model of heading-related information with hybrid structure is designed to estimate the angle difference between the vehicle driving direction and the road direction. The intelligent perception model comprises of a CNN based feature extraction model and a LS-SVM based nonlinear regression model. The extracted senior features are utilized as the input of LS-SVM to predict the angle difference between the vehicle driving direction and the road direction. Then, an enhanced digital map is established to provide the road direction through map matching. Finally, the heading angle of the vehicle is obtained by combining the angle difference and the road direction. In theory, the proposed heading angle estimation methodology is not affected by the complex urban environment and is immune to cumulative errors. To verify the feasibility and effectiveness of the proposed methodology, field experiments on different road types and with different driving maneuvers were performed. The experimental results indicate that the proposed methodology can achieve accurate heading angle estimation.INDEX TERMS Enhanced digital map, heading angle, intelligent model, vehicle state estimation.

show abstract

Strapdown inertial navigation systems based on fiber-optic gyroscopes

Cited by 23 publications

References 4 publications

Rotation Active Sensors Based on Ultrafast Fibre Lasers

Rotation Active Sensors Based on Ultrafast Fibre Lasers

Study on the High-Birefringence Hollow-Core Anti-Resonant Fiber with Semicircular Cladding

A Novel Heading Angle Estimation Methodology for Land Vehicles Based on Deep Learning and Enhanced Digital Map

Contact Info

Product

Resources

About