Open AccessError analysis of four-intensity algorithm used for the measurement of upper atmosphere
Author(s) -
Ye Jian-Yong,
Chunmin Zhang,
Biqiang Zhao,
Yingcai Li
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.67
Subject(s) - atmosphere (unit) , interferometry , intensity (physics) , mode (computer interface) , optics , doppler effect , interference (communication) , physics , wind speed , phase (matter) , observational error , algorithm , computer science , meteorology , mathematics , statistics , telecommunications , channel (broadcasting) , astronomy , operating system , quantum mechanics
With imaging interferometry and Doppler Effectthe information of the upper atmosphere including velocity and temperature can be obtained by measuring four interference intensities of the aurora in the upper atmosphere (80—300km). Theoretical analysis of the measurement error when using four-intensity algorithm in the moving mirror model and divided mirror model is presented respectively. The error of velocity and temperature of the upper atmosphere caused by random phase error is given. By computer simulationwe get the distribution map of velocity error and temperature error in the two models. The result shows that the error of the velocity with the divided mirror model is about half that with the moving mirror modelwhile the moving mirror model has appreciably higher accuracy for temperature. The research can help us to improve the detection precision of upper atmospheric wind in theory. It has important theoretical significance and practical value both for the research of the detect mode and manufacture of the equipment.