OPTIMAL INTERPOLATION OF STRUCTURAL RESPONSES FOR ACTIVE NOISE-CONTROL

This paper presents a method for interpolating a sparse set of velocit y measurements on the surface of a vibrating structure. The method is based on a novel integration of a physical model of the vibrating stru cture with an optimal signal recovery technique. The ability to achiev e good interpolation performance with a small set of sensors makes thi s method important for many active noise control applications where an accurate measure of structural surface velocity is required to predic t the radiated acoustic field. To demonstrate the applicability of thi s method in active control applications, a sample experiment is perfor med and results presented.