Errors due to random noise in velocity measurement using incoherent-scatter radar

Errors due to random noise in velocity measurement using incoherent-scatter radar

The random-noise errors involved in measuring the Doppler shift of an 'incoherent-scatter' spectrum are predicted theoretically for all values of <i>T<sub>e</sub></i>/<i>T<sub>i</sub></i> from 1.0 to 3.0. After correction has been made for...

Full description

Bibliographic Details
Main Authors: P. J. S. Williams, A. Etemadi, I. W. McCrea, H. Todd
Format: Article
Language:English
Published: Copernicus Publications 1996-12-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/14/1480/1996/angeo-14-1480-1996.pdf
id doaj-48722e4fc13848afa8d5402dc6166ca1
record_format Article
spelling doaj-48722e4fc13848afa8d5402dc6166ca12020-11-24T22:55:05ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05761996-12-01141480148610.1007/s00585-996-1480-xErrors due to random noise in velocity measurement using incoherent-scatter radarP. J. S. Williams0A. Etemadi1I. W. McCrea2H. Todd3Adran Ffiseg, Prifysgol Cymru Aberystwyth, SY23 3BZ, WalesBlackett Laboratory, Imperial College, London SW1, EnglandRutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, EnglandUniversity of Fiji, FijiThe random-noise errors involved in measuring the Doppler shift of an 'incoherent-scatter' spectrum are predicted theoretically for all values of <i>T<sub>e</sub></i>/<i>T<sub>i</sub></i> from 1.0 to 3.0. After correction has been made for the effects of convolution during transmission and reception and the additional errors introduced by subtracting the average of the background gates, the rms errors can be expressed by a simple semi-empirical formula. The observed errors are determined from a comparison of simultaneous EISCAT measurements using an identical pulse code on several adjacent frequencies. The plot of observed versus predicted error has a slope of 0.991 and a correlation coefficient of 99.3%. The prediction also agrees well with the mean of the error distribution reported by the standard EISCAT analysis programme.https://www.ann-geophys.net/14/1480/1996/angeo-14-1480-1996.pdf
collection DOAJ
language English
format Article
sources DOAJ
author P. J. S. Williams
A. Etemadi
I. W. McCrea
H. Todd
spellingShingle P. J. S. Williams
A. Etemadi
I. W. McCrea
H. Todd
Errors due to random noise in velocity measurement using incoherent-scatter radar
Annales Geophysicae
author_facet P. J. S. Williams
A. Etemadi
I. W. McCrea
H. Todd
author_sort P. J. S. Williams
title Errors due to random noise in velocity measurement using incoherent-scatter radar
title_short Errors due to random noise in velocity measurement using incoherent-scatter radar
title_full Errors due to random noise in velocity measurement using incoherent-scatter radar
title_fullStr Errors due to random noise in velocity measurement using incoherent-scatter radar
title_full_unstemmed Errors due to random noise in velocity measurement using incoherent-scatter radar
title_sort errors due to random noise in velocity measurement using incoherent-scatter radar
publisher Copernicus Publications
series Annales Geophysicae
issn 0992-7689
1432-0576
publishDate 1996-12-01
description The random-noise errors involved in measuring the Doppler shift of an 'incoherent-scatter' spectrum are predicted theoretically for all values of <i>T<sub>e</sub></i>/<i>T<sub>i</sub></i> from 1.0 to 3.0. After correction has been made for the effects of convolution during transmission and reception and the additional errors introduced by subtracting the average of the background gates, the rms errors can be expressed by a simple semi-empirical formula. The observed errors are determined from a comparison of simultaneous EISCAT measurements using an identical pulse code on several adjacent frequencies. The plot of observed versus predicted error has a slope of 0.991 and a correlation coefficient of 99.3%. The prediction also agrees well with the mean of the error distribution reported by the standard EISCAT analysis programme.
url https://www.ann-geophys.net/14/1480/1996/angeo-14-1480-1996.pdf
work_keys_str_mv AT pjswilliams errorsduetorandomnoiseinvelocitymeasurementusingincoherentscatterradar
AT aetemadi errorsduetorandomnoiseinvelocitymeasurementusingincoherentscatterradar
AT iwmccrea errorsduetorandomnoiseinvelocitymeasurementusingincoherentscatterradar
AT htodd errorsduetorandomnoiseinvelocitymeasurementusingincoherentscatterradar
_version_ 1725657986044526592

Similar Items