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Decentralized reduced-order filters
Authors:Bailey   M.A. Sims   C.S.
Affiliation:Dept. of Electr. & Comput. Eng., West Virginia Univ., Morgantown, WV;
Abstract:Continuous and discrete methods of designing simple reduced-order local filters within a large-scale network are suggested. The filters are designed to estimate only the local variables of interest and not the entire state vector. The method has the advantage that one need not know the mathematical models of the subsystems generating the interconnection variables. The order of the filter can be small enough so that there is no computational burden associated with the filter. The disadvantage of the method is that performance is lost by using a reduced-order filter instead of a full-order filter. An example that demonstrates one application in the aerospace industry is presented
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