H-infinity filtering for dynamic compensation of self-powered neutron detectors - A linear matrix inequality based method

A method is described to develop an H-infinity filtering method for the dyn amic compensation of self-powered neutron detectors normally used for fixed incore instruments, An H-infinity norm of the filter transfer matrix is us ed as the optimization criteria in the worst-case estimation error sense. F ilter modeling is performed for both continuous- and discrete-time models. The filter gains are optimized in the sense of noise attenuation level of H -infinity setting. By introducing Bounded Real Lemma, the conventional alge braic Riccati inequalities are converted into Linear Matrix Inequalities (L MIs). Finally, the filter design problem is solved via the convex optimizat ion framework using LMIs. The simulation results show that remarkable impro vements are achieved in view of the filter response time and the filter des ign efficiency. (C) 1999 Elsevier Science Ltd. All rights reserved.