Spectral analysis and step response of radio frequency scattering from a heated ionospheric volume

Details Spectral analysis and step response of radio frequency scattering from a heated ionospheric volume Spectral analysis and step response of radio frequency scattering from a heated ionospheric volume

Jun 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.2844m&link_type=abstract

Journal of Geophysical Research, vol. 81, June 1, 1976, p. 2844-2856.

Other

6

Frequency Response, Ionospheric Heating, Radio Scattering, Spectrum Analysis, Backscattering, Data Processing, Doppler Effect, F Region, Ionospheric Propagation, Radio Frequencies, Signal To Noise Ratios, Spectral Line Width

Scientific paper

Results of a spectral analysis of field-aligned VHF backscatter from a heated ionospheric volume in the F layer are reported. The spectra fall roughly into one of three categories: narrow band (in relation to the 100-Hz unambiguous frequency interval), noiselike (essentially uniform over at least 100 Hz), and composite structure, consisting of a narrow-band peak and a noiselike wide-band component. Signal bandwidths are found to be range dependent, with the narrowest spectral widths consistently being observed at the southern periphery of the heated volume. Ionospheric drift velocities along a nominally north-south axis are found to range from 0 to 30 m/s. The result of a measurement of cross-section decay in response to step function heater power variation suggests that the Fourier component of the electron density fluctuations at half the radar wavelength smooths out by a diffusion process in planes perpendicular to B, with a time constant proportional to lambda squared. This interpretation is consistent with other observations in which the scattering is always found to decay slower at longer radar wavelengths.

Affiliated with

Also associated with

No associations

Rating

Spectral analysis and step response of radio frequency scattering from a heated ionospheric volume does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spectral analysis and step response of radio frequency scattering from a heated ionospheric volume, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral analysis and step response of radio frequency scattering from a heated ionospheric volume will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1784480