Cramer-Rao lower bound on locations of sudden changes in a steplike signal

Estimation of locations of sudden changes in a steplike signal has many signal processing applications; e.g., well-log signal segmentation, ionic-channel signal classification, edge detection, and segmentation of images. In this work, the Cramer-Rao lower bound (CRLB) on locations of steps in one-di...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	IEEE transactions on signal processing 1996-10, Vol.44 (10), p.2551-2556
Hauptverfasser:	Reza, A.M., Doroodchi, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Change detection algorithms Detection, estimation, filtering, equalization, prediction Exact sciences and technology Filters Image edge detection Image segmentation Information, signal and communications theory Pattern classification Performance evaluation Probability density function Signal and communications theory Signal detection Signal processing Signal processing algorithms Signal, noise Telecommunications and information theory
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Estimation of locations of sudden changes in a steplike signal has many signal processing applications; e.g., well-log signal segmentation, ionic-channel signal classification, edge detection, and segmentation of images. In this work, the Cramer-Rao lower bound (CRLB) on locations of steps in one-dimensional (1-D) steplike signals is calculated. The calculation is based on the use of a sigmoidal function to model a sudden-change (step) in the signal. The introduced model has an adjustable parameter that can be used to fit the CRLB calculation to a particular class of steplike signals.
ISSN:	1053-587X 1941-0476
DOI:	10.1109/78.539038