Dedicated Calculation Strategy for Atom Interferometry Sensors in Inertial Navigation

Benjamin Tennstedt and Steffen Schön

Abstract: This paper examines two specific possibilities to use the measurement of a cold atom interferometer (CAI) sensor in Mach-Zehnder configuration in a navigation solution, both in combination with a conventional IMU. A loosely coupled option within the solution of the Bortz equation is discussed, as well as a deeper integrated combination within an error state Kalman filter framework. In the latter, the conventional IMU can be used to solve the ambiguity problem of the cold atom interferometer (CAI), while the CAI corrects systematic IMU errors and reduces the uncertainty of the navigation solutions position and velocity estimate.
Published in: 2020 IEEE/ION Position, Location and Navigation Symposium (PLANS)
April 20 - 23, 2020
Hilton Portland Downtown
Portland, Oregon
Pages: 755 - 764
Cite this article: Tennstedt, Benjamin, Schön, Steffen, "Dedicated Calculation Strategy for Atom Interferometry Sensors in Inertial Navigation," 2020 IEEE/ION Position, Location and Navigation Symposium (PLANS), Portland, Oregon, April 2020, pp. 755-764.
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