A statistical analysis of the error produced by the tropospheric path delay calculation

Saqellari-Likoka, A; Karathanassi, V

dc.contributor.author	Saqellari-Likoka, A	en
dc.contributor.author	Karathanassi, V	en
dc.date.accessioned	2014-03-01T02:51:01Z
dc.date.available	2014-03-01T02:51:01Z
dc.date.issued	2007	en
dc.identifier.issn	03796566	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35304
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-36448932023&partnerID=40&md5=0f1dfec74a0c5d3e3e9112c98083cf46	en
dc.subject.other	Atmospheric humidity	en
dc.subject.other	Error analysis	en
dc.subject.other	Interferometry	en
dc.subject.other	Statistical methods	en
dc.subject.other	Synthetic aperture radar	en
dc.subject.other	Topography	en
dc.subject.other	Water vapor	en
dc.subject.other	Error propagation	en
dc.subject.other	Path delay calculation	en
dc.subject.other	Probability theory	en
dc.subject.other	Signal delay	en
dc.subject.other	Troposphere	en
dc.title	A statistical analysis of the error produced by the tropospheric path delay calculation	en
heal.type	conferenceItem	en
heal.publicationDate	2007	en
heal.abstract	The interferometric phase is analysed in many components such as the phase delay due to the local topography and the atmospheric phase delay. The atmospheric path delay in Synthetic Aperture Radar (SAR) interferograms are mainly due to ionospheric and tropospheric effects. The signal delay due to troposphere is further analysed as a function of the parameters air pressure, temperature, water vapour pressure and relative humidity. This paper reviews a number of tropospheric path delay calculation models and proposes a statistical analysis of the error of the different parameters included in these models. The statistical analysis of the error propagation is based on the Atkinson model according to which every floating point number implies an error. According to the central Limit Theorem of the probability theory, these errors are normally distributed permitting the estimation of the precision of the tropospheric path delay.	en
heal.journalName	European Space Agency, (Special Publication) ESA SP	en
dc.identifier.issue	SP-636	en