Physics
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jatp...51..937p&link_type=abstract
Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 51, Nov.-Dec. 1989, p. 937-945.
Physics
9
D Region, Eiscat Radar System (Europe), Incoherent Scatter Radar, Pulse Radar, Radar Range, Atmospheric Temperature, Backscattering, Doppler Effect, Ionospheric Electron Density, Particle Precipitation, Spectral Resolution
Scientific paper
For lower ionosphere studies with EISCAT incoherent scatter radars there exists a sophisticated Barker-coded pulse-to-pulse correlation experiment GEN-11. In this paper a detailed description of the modulation and how it produces ambiguities to the raw data is presented. This leads into an addition to the standard analysis procedure which removes these ambiguities. The analysis works well at altitudes from 70 km to 100 km. During a precipitation event, the obtained correlation times above 90 km are about 20 percent smaller than without the correlation. Below 80 km, the corrected correlation times can be larger by a factor of two, which has a significant effect to the estimated negative ion to electron density ratio.
Huuskonen Asko
Pollari P.
Turunen Esa
Turunen Tauno
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