Inertial position determination under vibration

• Autorzy: Avrutov Vadym , Lakoza Serhii , Ryzhkov Lev , Sapegin Oleksandr
• Języki publikacji: EN

Abstrakty

EN

The main purpose of navigation systems is a position determination different moving objects. For standard inertial navigation systems algorithm, the initial position data are required. Normally these data may be determined by astronomical techniques or satellite and radio navigation systems. However, astronomical techniques depend on climate conditions and satellite and radio systems can be disturbed by electromagnetic countermeasures. It is proposed to use an Inertial Measurement Unit (IMU) and a navigation computer for autonomous determination of an initial position. IMU should be composed of three accelerometers, three gyroscopes and a signal processing circuit. The method proposed the latitude determination uses projections of the Earth’s rate measured by orthogonal IMU gyroscopes and projections of the gravity acceleration measured by orthogonal IMU accelerometers. Experimental tests of the IMU with a ring laser gyros triad and precision pendulum accelerometers confirmed the efficiency of the method on a fixed base. The behavior of the latitude determination under vibration is researched. The latitude determination under vibration was considered analytically by Power Spectral Density theory. It was estimated a variance of the latitude under the broad-band vibration. The method operability under harmonic and random vibration of the base at the real time is considered.

Słowa kluczowe

EN

latitude determination; initial alignment; random vibration

PL

określanie szerokości geograficznej; drgania losowe

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2020
• Tom: Vol. 31, nr 2
• Strony: art. no. 2020201
• Opis fizyczny: Bibliogr. 20 poz., 1 rys., wykr.

Twórcy

autor

Avrutov Vadym

• Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, Ukraine

autor

Lakoza Serhii

• Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, Ukraine

autor

Ryzhkov Lev

• Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, Ukraine

autor

Sapegin Oleksandr

• Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, Ukraine

Bibliografia

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• 20. S. Wang, G. Yang, W. Chen, and L. Wang, “Latitude determination and error analysis for stationary SINS in unknow-position condition,” Sensors (Switzerland), 2020, doi: 10.3390/s20092558.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).