Optimal Sensor Locations for System Identification
Final rept. 6 Feb 86-6 Aug 87,
SOUTHEASTERN CENTER FOR ELECTRICAL ENGINEERING EDUCATION INC ST CLOUD FL
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This report deals with four major topics which impact, in a substantive manner, our ability to identify large, spatially extended structural systems in space with modest resources. A The first topic studies the uniqueness in the identification of a cantilever, boom-type structural system which is modelled by finite elements and is subjected to a base motion. B The second topic deals with the development of a methodology for optimally placing sensors in a large spatially extended structural system so that data collected from those locations would yield maximum information about the parameters to be identified. A preliminary methodology applicable to systems that can be adequately described by a set of ordinary differential equations has been developed and validated. C The third topic deals more directly with experimental design. It aims at tailoring the measurement stream to minimize data handling and processing related to system identification. D The fourth topic deals with an analysis of the tradeoffs between control and identification. The duality of the concepts of identification and control are studied in a quantitative manner and an illustrative example is shown amplifying the analytical results.
- Target Direction, Range and Position Finding