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Microwave FM‐CW Doppler radar for boundary layer probing
Author(s) -
Strauch R. G.,
Campbell W. C.,
Chadwick R. B.,
Moran K. P.
Publication year - 1976
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl003i003p00193
Subject(s) - doppler effect , radar , doppler radar , optics , microwave , remote sensing , zenith , pulse doppler radar , continuous wave radar , physics , materials science , radar imaging , geology , computer science , telecommunications , quantum mechanics , astronomy
A microwave FM‐CW radar can obtain the complete spectrum of radial velocities of both precipitation particles and refractive‐index fluctuations in the optically clear air. Heretofore the extraction of the Doppler spectrum from this type of radar was believed to be a formidable, if not impossible, task. We have implemented a Doppler processing technique that uses a data acquisition system developed for pulsed Doppler radar. We present Doppler spectra obtained with a zenith‐pointing FM‐CW radar that demonstrate this new capability. In addition to the strong refractive‐index layers observed by the FM‐CW radar in the optically clear air, there is evidence that scattering from a background continuum of C n ² can be detected when a Doppler operating mode is employed.