Warning: Table './science/sessions' is marked as crashed and should be repaired query: SELECT u.*, s.* FROM users u INNER JOIN sessions s ON u.uid = s.uid WHERE s.sid = '5lu0fvh0m3vfnmf9pm26ttrak0' in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:173:\"Table './science/sessions' is marked as crashed and should be repaired\nquery: SELECT COUNT(sid) AS count FROM sessions WHERE timestamp >= 1782633721 AND uid = 0\";s:5:\"%file\";s:63:\"/var/www/html/science/science.uni-obuda.hu/includes/session.inc\";s:5:\"%line\";i:120;}', 3, '', 'http://science.uni-obuda.hu/en/node/2374', '', '216.73.216.31', 1782634621) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:184:\"Table './science/sessions' is marked as crashed and should be repaired\nquery: SELECT COUNT(DISTINCT s.uid) FROM sessions s WHERE s.timestamp >= 1782633721 AND s.uid > 0\";s:5:\"%file\";s:67:\"/var/www/html/science/science.uni-obuda.hu/modules/user/user.module\";s:5:\"%line\";i:776;}', 3, '', 'http://science.uni-obuda.hu/en/node/2374', '', '216.73.216.31', 1782634621) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:138:\"realpath(): open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/var/www/html/science/science.uni-obuda.hu)\";s:5:\"%file\";s:60:\"/var/www/html/science/science.uni-obuda.hu/includes/file.inc\";s:5:\"%line\";i:200;}', 3, '', 'http://science.uni-obuda.hu/en/node/2374', '', '216.73.216.31', 1782634621) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:138:\"realpath(): open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/var/www/html/science/science.uni-obuda.hu)\";s:5:\"%file\";s:60:\"/var/www/html/science/science.uni-obuda.hu/includes/file.inc\";s:5:\"%line\";i:200;}', 3, '', 'http://science.uni-obuda.hu/en/node/2374', '', '216.73.216.31', 1782634621) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Recursive Overcomplete Signal Representations | science.uni-obuda.hu
Skip to main content

Recursive Overcomplete Signal Representations

TitleRecursive Overcomplete Signal Representations
Publication TypeJournal Article
Year of Publication2001
AuthorsVárkonyi-Kóczy, A., and Fék M
JournalIEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
Volume50
Issue6
Pagination1698 - 1703
Date Published2001
Publication Languageeng
Abstract

For representing stationary signals, several well-established methods are available. For nonstationary signals, however, these approaches can be used only with serious limitations. If the signal can be characterized as a sequence of stationary intervals, overcomplete signal representations help to handle such problems. This paper introduces the concept of recursive overcomplete representations using different recursive signal processing algorithms. The novelty of the paper is that an on-going set of signal transformations together with appropriate (e.g., L-1 norm) minimization procedures can provide optimal on-going representations, on-going signal segmentations into stationary intervals, and on-going feature extractions for immediate utilization in diagnostics, or other applications.
Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:263:\"Table './science/sessions' is marked as crashed and should be repaired\nquery: UPDATE sessions SET uid = 0, cache = 0, hostname = '216.73.216.31', session = '', timestamp = 1782634621 WHERE sid = '5lu0fvh0m3vfnmf9pm26ttrak0'\";s:5:\"%file\";s:63:\"/var/www/html/science/science.uni-obuda.hu/includes/session.inc\";s:5:\"%line\";i:69;}', 3, '', 'http://science.uni-obuda.hu/en/node/2374', '', '216.73.216.31', 1782634621) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135