EL.GAYAR, M., AL.HUSSAINI, E., HASSAN, A. (1985). ROBUST FILTERS FOR TIME DELAY ESTIMATORS WITH BOUNDED SPECTRAL CLASSES AT THE INPUTS. test, 1(A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO), 1123-1128. doi: 10.21608/asat.1985.26581
M. EL.GAYAR; E. K. AL.HUSSAINI; A. F. HASSAN. "ROBUST FILTERS FOR TIME DELAY ESTIMATORS WITH BOUNDED SPECTRAL CLASSES AT THE INPUTS". test, 1, A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO, 1985, 1123-1128. doi: 10.21608/asat.1985.26581
EL.GAYAR, M., AL.HUSSAINI, E., HASSAN, A. (1985). 'ROBUST FILTERS FOR TIME DELAY ESTIMATORS WITH BOUNDED SPECTRAL CLASSES AT THE INPUTS', test, 1(A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO), pp. 1123-1128. doi: 10.21608/asat.1985.26581
EL.GAYAR, M., AL.HUSSAINI, E., HASSAN, A. ROBUST FILTERS FOR TIME DELAY ESTIMATORS WITH BOUNDED SPECTRAL CLASSES AT THE INPUTS. test, 1985; 1(A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO): 1123-1128. doi: 10.21608/asat.1985.26581

ROBUST FILTERS FOR TIME DELAY ESTIMATORS WITH BOUNDED SPECTRAL CLASSES AT THE INPUTS

International Conference on Aerospace Sciences and Aviation Technology
Article 89, Volume 1, A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO, May 1985, Pages 1123-1128    PDF (955.53 K)
Document Type: Original Article
DOI: 10.21608/asat.1985.26581
Authors
M. EL.GAYAR1; E. K. AL.HUSSAINI2; A. F. HASSAN3
1Graduate student, Dpt. of electronics and communi-cation, Cairo University, Egypt.
2Associate Professor, Dpt. of electronics and communi-cation, Cairo University, Egypt.
3Professor, Dept. of electronics and communication, Cairo University.
Abstract
Optimum filters are used to enhance the performance of the generalized cross correlator (GCC) used in time delay estimators (TDE). The performance of these TDE can deteriorate considerably for deviations in the input power spectral densities (PSD's) from their assumed nominal values. In this pap-er we consider the bounded spectral classes of PSD's which are useful mode-ls when the input PSD's are not precisely known. For these classes, robust filters for TDE are derived for two optimum criterions separately. These criterions are maximizing the signal to noise ratio and minimizing the mean square error. The robust filters obtained achieve better performance for any inputs within the assumed PSD's. Numerical examples given illustrate the theoretical results.
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