Erhardt, StefanStefanErhardtKoch, MartinMartinKochKiefer, AndreasAndreasKieferVeith, MichaelMichaelVeithWeigel, RobertRobertWeigelKölpin, AlexanderAlexanderKölpin2023-06-132023-06-132023-05-31Sensors 23 (11): 5236 (2023-05-31)http://hdl.handle.net/11420/15400We introduce a novel ultra-low power system for tracking animal movements over long periods with an unprecedented high-temporal-resolution. The localization principle is based on the detection of cellular base stations using a miniaturized software-defined radio, weighing 2.0 g, including the battery, and having a size equivalent to two stacked 1-euro cent coins. Therefore, the system is small and lightweight enough to be deployed on small, wide-ranging, or migrating animals, such as European bats, for movement analysis with an unprecedented spatiotemporal resolution. The position estimation relies on a post-processing probabilistic RF pattern-matching method based on the acquired base stations and power levels. In several field tests, the system has been successfully verified, and a run-time of close to one year has been demonstrated.We introduce a novel ultra-low power system for tracking animal movements over long periods with an unprecedented high-temporal-resolution. The localization principle is based on the detection of cellular base stations using a miniaturized software-defined radio, weighing 2.0 g, including the battery, and having a size equivalent to two stacked 1-euro cent coins. Therefore, the system is small and lightweight enough to be deployed on small, wide-ranging, or migrating animals, such as European bats, for movement analysis with an unprecedented spatiotemporal resolution. The position estimation relies on a post-processing probabilistic RF pattern-matching method based on the acquired base stations and power levels. In several field tests, the system has been successfully verified, and a run-time of close to one year has been demonstrated.en1424-82202023120Multidisciplinary Digital Publishing Institutehttps://creativecommons.org/licenses/by/4.0/InformatikIngenieurwissenschaftenJournal Article2023-06-0910.15480/882.517810.3390/s2311523610.15480/882.5178Journal Article