1988
DOI: 10.1029/rs023i004p00640
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Radio acoustic sounding of the atmosphere using a FM CW radar

Abstract: The use of a FM CW radar for the measurement of atmospheric sound velocity profiles is investigated. In contrast to particulate scatterers or clear air turbulence the sound waves represent a coherent scattering structure, and the consequences are examined. We derive the theoretical shape of the signal spectrum and present examples of velocity profiles of vertically propagating sound waves. As the sound and clear air echoes are separable by frequency, simultaneous measurements of atmospheric wind and temperatur… Show more

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Cited by 9 publications
(6 citation statements)
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“…Through a mixer in the receiver the return em signal that is scattered from the acoustic wave fronts is multiplied (mixed) with the reference signal, which is identical with the transmitted signal; the mixer output operates through a time window and low-pass filter and then utilizes a fast Fourier transform (FFT) analyzer to obtain the spectrum. Without introducing the window and after low-pass filtering the mixer output can be expressed as [Peters et al, 1988]…”
Section: And the Time Domain Windowmentioning
confidence: 99%
See 3 more Smart Citations
“…Through a mixer in the receiver the return em signal that is scattered from the acoustic wave fronts is multiplied (mixed) with the reference signal, which is identical with the transmitted signal; the mixer output operates through a time window and low-pass filter and then utilizes a fast Fourier transform (FFT) analyzer to obtain the spectrum. Without introducing the window and after low-pass filtering the mixer output can be expressed as [Peters et al, 1988]…”
Section: And the Time Domain Windowmentioning
confidence: 99%
“…The radio acoustic sounding system (RASS) using a FM CW radar [Peters et al, 1988] is particularly useful for short range (lower than 1000-2000 m) and high time and space resolution (can be of the order of a few meters) remote sensing. This kind of radio acoustic sounding system (RASS) could be used as a surface-based system to monitor atmospheric boundary layer including the measurements of temperature, wind, and turbulence.…”
Section: Introductionmentioning
confidence: 99%
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“…Over the past four decades RASS has been demonstrated to be a reliable ground-based remote profiling technique to obtain altitude profiles of atmospheric virtual temperature, T v (e.g. Marshall et al, 1972;Bonino et al, 1979;Kon, 1981;Makarova, 1980;Matuura et al,1986;Peters et al, 1988;May et al, 1990). Using RASS, continuous observations of T v with high temporal resolution have been conducted (e.g.…”
Section: Introductionmentioning
confidence: 99%