Computer Science – Sound
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jatp...51..879j&link_type=abstract
Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 51, Nov.-Dec. 1989, p. 879-895. Research supported by DOE.
Computer Science
Sound
4
Doppler Effect, Error Analysis, Ionospheric Sounding, Phase Velocity, Traveling Ionospheric Disturbances, Velocity Errors, Cross Correlation, High Frequencies, Ionospheric Propagation, Ray Tracing, Specular Reflection
Scientific paper
Errors which are likely to occur in the compact-array HF sounding technique for determining the velocity of traveling ionospheric disturbances are examined. The errors arise from ionospheric irregularities (either large-scale specular facets, or fine-scale scatterers) and from the presence of multiple disturbance undulations propagating simultaneously with different velocities. The errors are either systematic (that is, not causing internal inconsistencies within the array velocimetry data) or random (that is, causing quantifiable inconsistencies between alternative velocity estimates furnished by the array). The random errors can be directly assessed using array data, as is illustrated for actual data from a 16-channel array.
Carlos Robert C.
Jacobson Abram R.
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