Sayed, Ali H. and Hassibi, Babak and Kailath, Thomas (1996) Inertia properties of indefinite quadratic forms. IEEE Signal Processing Letters, 3 (2). pp. 57-59. ISSN 1070-9908. doi:10.1109/97.484217. https://resolver.caltech.edu/CaltechAUTHORS:SAYieeespl96
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Abstract
We study the relation between the solutions of two estimation problems with indefinite quadratic forms. We show that a complete link between both solutions can be established by invoking a fundamental set of inertia conditions. While these inertia conditions are automatically satisfied in a standard Hilbert space setting, they nevertheless turn out to mark the differences between the two estimation problems in indefinite metric spaces. They also include, as special cases, the well-known conditions for the existence of H-infinity-filters and controlers.
Item Type: | Article | ||||||
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Additional Information: | © 1996 IEEE. Reprinted with permission. Manuscript received September 5, 1994. This work was supported by a Research Initiation Award from the National Science Foundation under Award MIP-9409319 and by the Army Research Office under Contract DAAL03-89-K-0109. The associate editor coordinating the review of this letter and approvmg it for publicatlon was Dr. T. S. Durrani. | ||||||
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Issue or Number: | 2 | ||||||
DOI: | 10.1109/97.484217 | ||||||
Record Number: | CaltechAUTHORS:SAYieeespl96 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:SAYieeespl96 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 1637 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Tony Diaz | ||||||
Deposited On: | 08 Feb 2006 | ||||||
Last Modified: | 08 Nov 2021 19:12 |
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