Localization of the Chelyabinsk Meteorite From Magnetic Field Survey and GPS Data

Kletetschka, Günther; Vyhnánek, Jan; Kawasumiova, Darja; Nabelek, L.; Petrucha, Vojtech

doi:10.1109/jsen.2015.2435252

Cited by 7 publications

(3 citation statements)

References 19 publications

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“…To compensate the effect of GPS outage caused by multipath and NLOS, GPS integrates with other sensors or additional information such as low-cost MEMS level inertial navigation system (INS) [16][17][18][19][20][21], magnetometer and other sensors [22,23] and 3D digital maps [24][25][26]. This paper aims to enhance GPS performance before its integration with other sensors.…”

Section: Introductionmentioning

confidence: 99%

Multiple Faulty GNSS Measurement Exclusion Based on Consistency Check in Urban Canyons

et al. 2017

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Abstract-Sensors play important roles for autonomous driving.Localization is definitely a key one. Undoubtedly, global positioning system (GPS) sensor will provide absolute localization for almost all the future land vehicles. In terms of driverless car, 1.5 meters of positioning accuracy is the minimum requirement since the vehicle has to keep in a driving lane that usually wider than 3 meters. However, the skyscrapers in highly-urbanized cities such as Tokyo and Hong Kong, dramatically deteriorate GPS localization performance, leading more than 50 meters of error. GPS signals are reflected at modern glassy buildings which caused the notorious multipath effect. Fortunately, the number of navigation satellite is rapidly increasing in a global scale since the rise of multi-GNSS (global navigation satellite system). It provides an excellent opportunity for positioning algorithm developer of GPS sensor. More satellites in the sky implies more measurements to be received. Novelty, this paper proposes to take advantage of the fact that clean measurements (refers to line-of-sight measurement) are consistent and multipath measurements are inconsistent. Based on this consistency check, the faulty measurements can be detected and excluded to obtain better localization accuracy. Experimental results indicate that the proposed method can achieve less than 1 meter lateral positioning error in middle urban canyons.

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Section: Introductionmentioning

confidence: 99%

Multiple Faulty GNSS Measurement Exclusion Based on Consistency Check in Urban Canyons

et al. 2017

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“…Two weeks later, a research group from the Charles University, Prague, led by Kletetschka, made surface magnetic field mapping showing a positive anomaly to the north-west of the breach that was interpreted as a purely geological effect [5]. The subsequent underwater magnetic survey with a submersible fluxgate magnetometer, performed in June 19-22, 2013, revealed two sharp peaks of magnetic induction, south-east of the ice-hole -see Fig. 14.…”

Section: Magnetometry and Meteorite Recoverymentioning

confidence: 99%

“…In order to reduce the search area, Ground Penetrating Radar (GPR) inspection of the lake bottom was performed from the ice surface by means of Loza-N GPR [2], [3]. Along with the information provided by Ural scientists and Czech colleagues [4], [5], the results of the IZMIRAN-VNIISMI GPR and magnetic surveys were used in preparing diving works undertaken later by the Aleut-Special Work Service Company [6] and resulting in the excavation of the biggest fragment of the space guest.…”

Section: Introductionmentioning

confidence: 99%