Role of Navigation Technologies in Mobile Gravimeters Development

Peshekhonov, V. G.; Соколов, А. В.; Zheleznyak, L. K.; Bereza, A. D.; Краснов, А. А.

doi:10.1134/s2075108720010101

Cited by 13 publications

(3 citation statements)

References 7 publications

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“…26, No. 3, 2024 [13,14]. This technique has not only increased the accuracy of positioning measurements but, on top of that, made it possible to increase the frequency of measurements.…”

Section: Introductionmentioning

confidence: 99%

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Accuracy of marine gravimetric measurements in terms of geodetic coordinates of land reference benchmark

Pyrchla,

Łapiński,

Szulwic

et al. 2024

Eksploatacja i Niezawodność – Maintenance and Reliability

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The article presents how the values of (3D) coordinates of land reference points affect the results of gravimetric measurements made from the ship in sea areas. These measurements are the basis for 3D maritime inertial navigation, improving ships' operational safety. The campaign verifying the network absolute point coordinates used as a reference point for relative marine gravity measurements was described. The obtained values were compared with catalogue values. In verification of network points 3D position the satellite data Global Satellite Navigation System (GNSS) and ground supporting systems (GBAS) was used. In this example, the height difference of the land reference point was 0.32 m. As a consequence, the offset budget of the marine campaign was affected in the range of up to 0.35 mGal. The influence on gravity free-air anomaly was not constant over the entire area covered by the campaign.

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“…26, No. 3, 2024 [13,14]. This technique has not only increased the accuracy of positioning measurements but, on top of that, made it possible to increase the frequency of measurements.…”

Section: Introductionmentioning

confidence: 99%

“…Positioning was obtained by recording raw GNSS data from receivers installed on the vessel and data from reference stations along the Polish coast and along the southern coast of Sweden. It must be noted the application of the Global Navigation Satellite System technique has revolutionised maritime gravimetric measurements[13,14]. This technique has…”

mentioning

confidence: 99%

Accuracy of marine gravimetric measurements in terms of geodetic coordinates of land reference benchmark

Pyrchla,

Łapiński,

Szulwic

et al. 2024

Eksploatacja i Niezawodność – Maintenance and Reliability

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“…The aided navigation method based on the geophysical field provides a new idea and means to solve this problem [ 5 , 6 , 7 ]. The marine gravity field and geomagnetic field are two kinds of geophysical fields that we are mainly concerned about.…”

Section: Introductionmentioning

confidence: 99%

An Aided Navigation Method Based on Strapdown Gravity Gradiometer

Gao

Chang

et al. 2021

Sensors

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The gravity gradient is the second derivative of gravity potential. A gravity gradiometer can measure the small change of gravity at two points, which contains more abundant navigation and positioning information than gravity. In order to solve the problem of passive autonomous, long-voyage, and high-precision navigation and positioning of submarines, an aided navigation method based on strapdown gravity gradiometer is proposed. The unscented Kalman filter framework is used to realize the fusion of inertial navigation and gravity gradient information. The performance of aided navigation is analyzed and evaluated from six aspects: long voyage, measurement update period, measurement noise, database noise, initial error, and inertial navigation system device level. When the parameters are set according to the benchmark parameters and after about 10 h of simulation, the results show that the attitude error, velocity error, and position error of the gravity gradiometer aided navigation system are less than 1 arcmin, 0.1 m/s, and 33 m, respectively.

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