Terrain-aided navigation with an atomic gravimeter

Cold atom interferometer is a promising technology to obtain a highly sensitive and accurate absolute gravimeter. With the help of an anomalies gravity map, local measurements of gravity allow a terrain-based navigation. This paper follows the one we published in Fusion 2017. Based on an atomic gravimeter we present a method to map the gravity anomaly. We propose a modification of the Laplace-based particle filter so as to make it more robust. Some simulation results demonstrate a better robustness of the proposed filter.