Abstract
AbstractProof-of-principle demonstrations have been made for cold atom interferometer (CAI) sensors. Using CAI-based accelerometers in the next generation of satellite gravimetry missions can provide long-term stability and precise measurements of the non-gravitational forces acting on the satellites. This would allow a better understanding of climate change processes and geophysical phenomena which require long-term monitoring of mass variations with sufficient spatial and temporal resolution. The proposed accuracy and long-term stability of CAI-based accelerometers appear promising, while there are some major drawbacks in the long dead times and the comparatively small dynamic range of the sensors. One interesting way to handle these limitations is to use a hybridization with a conventional navigation sensor. This study discusses one possible solution to employ measurements of a CAI accelerometer together with a conventional Inertial Measurement Unit (IMU) using a Kalman filter framework.A hybrid navigation solution of these two sensors for applications on ground has already been demonstrated in simulations. Here, we adapt this method to a space-based GRACE-like gravimetry mission. A simulation is performed, where the sensitivity of the CAI accelerometer is estimated based on state-of-the-art ground sensors and further published space scenarios. Our results show that the Kalman filter framework can be used to combine the measurements of conventional inertial measurement units with the CAI accelerometers measurements in a way to benefit from the high accuracy of the conventional IMU measurements in higher frequencies together with the high stability of CAI measurements in lower frequencies. We will discuss the challenges, potential solutions, and the possible performance limits of the proposed hybrid accelerometry scenario.
Publisher
Springer Berlin Heidelberg
Reference32 articles.
1. Abend S, Gersemann M, Schubert C, Schlippert D, Rasel EM, Zimmermann M, Efremov MA, Roura A, Narducci FA, Schleich WP (2020) Atom interferometry and its applications. In: Rasel EM, Schleich W, Wölk S (eds) Proceedings of the international school of physics, vol 197, pp 345–392. https://doi.org/10.3254/978-1-61499-937-9-345
2. Abich K, Abramovici A, Amparan B, Baatzsch A, Okihiro BB, Barr DC, et al. (2019) In-orbit performance of the GRACE follow-on laser ranging interferometer. Phys Rev Lett 123(3):031101. https://doi.org/10.1103/PhysRevLett.123.031101
3. Abrykosov P, Pail R, Gruber T, Zahzam N, Bresson A, Hardy E, Christophe B, Bidel Y, Carraz O, Siemes C (2019) Impact of a novel hybrid accelerometer on satellite gravimetry performance. Adv Space Res 63(10):3235–3248. https://doi.org/10.1016/j.asr.2019.01.034
4. Alonso I, Alpigiani C, Altschul B, Araujo H, Arduini G, Arlt J, Badurina L, Balaz A, Bandarupally S, et al. (2022) Cold atoms in space: Community workshop summary and proposed road-map. https://arxiv.org/abs/2201.07789
5. Antoine C, Borde CJ (2003) Quantum theory of atomic clocks and gravito-inertial sensors: an update. J Opt B Quantum Semiclass Opt 5(2):S199–S207. https://doi.org/10.1088/1464-4266/5/2/380
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献