Computer Science – Sound
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jatp...43.1265f&link_type=abstract
Journal of Atmospheric and Terrestrial Physics, vol. 43, Dec. 1981, p. 1265, 1266. Research supported by the Australian Research
Computer Science
Sound
4
Ionospheric Propagation, Ionospheric Sounding, Phase Detectors, Radio Echoes, Display Devices, Doppler Effect, Electromagnetic Pulses, Oscilloscopes
Scientific paper
The phase and amplitude of a radio pulse reflected from the ionosphere usually vary during the pulse. It is convenient to observe these variations using the X-Y mode of an oscilloscope to display the phasor of the echo. The variations are then seen as an oval or spiral shape traced out by the end point of the phasor. These shapes provide a sensitive method of detecting the presence of more than one echo, and are useful as a measure of dispersion.
From W. R.
Whitehead Dion J.
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