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LETTERS, Incoherent Scatter Observations at Arecibo Using Compressed Pulses
Author(s) -
Ioannidis G.,
Farley D. T.
Publication year - 1972
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs007i007p00763
Subject(s) - incoherent scatter , ionosphere , ionospheric sounding , physics , optics , computational physics , remote sensing , geology , geophysics
Pulse‐compression techniques are now being used successfully in incoherent observations at Arecibo. In most observations a 13‐bit Barker code and 6‐μsec baud length are used, giving a compression ratio of 13 to 1 with very low range sidelobes and an altitude resolution of 0.9 km. A few of the first measurements with this technique are presented here and include observations of (a) the E region and sporadic E layers, (b) the D ‐region ledge near 80 km, and (c) narrow enhanced echoes associated with HF heating of the ionosphere.