%A A. Khapalov %J Proceedings of the 32nd IEEE Conference on Decision and Control, 1993. %T Exact observability of nonstationary hyperbolic system with scanning finite-dimensional observations %X We consider the problem of exact observability of the linear hyperbolic equation with time-varying coefficients under internal finite dimensional moving observations. Two types of scanning observations are considered and the existence of spatial curves and set-valued maps for sensors that ensure exact observability is established. The techniques involved are related to the construction of suitable skeletons for required observation curves and maps %K Observability, Partial differential equations, Skeleton, Yttrium, Helium %P 1866-1867 %B Proceedings of 32nd IEEE Conference on Decision and Control %D 1993 %R 10.1109/CDC.1993.325517 %L iiasa13596