论文标题

带有量子传感器的机载绝对重量测定法,与经典技术进行比较

Airborne absolute gravimetry with a quantum sensor, comparison with classical technologies

论文作者

Bidel, Yannick, Zahzam, Nassim, Bresson, Alexandre, Blanchard, Cédric, Bonnin, Alexis, Bernard, Jeanne, Cadoret, Malo, Jensen, Tim Enzlberger, Forsberg, René, Salaun, Corinne, Lucas, Sylvain, Lequentrec-Lalancette, Marie Francoise, Rouxel, Didier, Gabalda, Germinal, Seoane, Lucia, Vu, Dinh Toan, Bonvalot, Sylvain

论文摘要

我们报告了基于原子干涉法和两个相对重量表的绝对重量表的空气降性重力调查:经典的lacoste \&romberg(l \&r)和一个新颖的IMAR绑带惯性测量单元(IMU)。我们估计量子重量表的测量误差范围为0.6至1.3 mgal,具体取决于飞行条件和所使用的过滤。使用IMAR互动重力计获得了类似的测量误差,但长期稳定性差五倍。传统的L \&R平台重量表显示出更大的测量误差(3-4 mgal)。空降测量已与海洋,土地和高度衍生的重力数据进行了比较。我们获得了具有标准偏差的量子重量表的良好一致性,并获得低于或等于2 mgal的差异。这项研究证实了量子技术对于绝对空气中的重量法的潜力,这对于映射浅水或山区以及将地面和卫星测量与均匀的绝对参考联系起来特别有趣。

We report an airborne gravity survey with an absolute gravimeter based on atom interferometry and two relative gravimeters: a classical LaCoste\&Romberg (L\&R) and a novel iMAR strap-down Inertial Measurement Unit (IMU). We estimated measurement errors for the quantum gravimeter ranging from 0.6 to 1.3 mGal depending on the flight conditions and the filtering used. Similar measurement errors are obtained with iMAR strapdown gravimeter but the long term stability is five times worse. The traditional L\&R platform gravimeter shows larger measurement errors (3 - 4 mGal). Airborne measurements have been compared to marine, land and altimetry derived gravity data. We obtain a good agreement for the quantum gravimeter with standard deviations and means on differences below or equal to 2 mGal. This study confirms the potential of quantum technology for absolute airborne gravimetry which is particularly interesting for mapping shallow water or mountainous areas and for linking ground and satellite measurements with homogeneous absolute referencing.

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