Matches in SemOpenAlex for { <https://semopenalex.org/work/W1990745559> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W1990745559 endingPage "146" @default.
- W1990745559 startingPage "137" @default.
- W1990745559 abstract "A two-dimensional matched filter technique is described for processing ing the signal from a pulsed coherent troposcatter link to obtain high crosspath resolution maps showing the relative positions of individual scatterers. For a typical tropolink (station displacement 200 km; midpath beam halfwidth 2 km; wavelength 0.3 meters) crosspath resolution is about 4.5 meters under perfect conditions. Vertical resolution is inversely proportional to scatterer height, but even for wide bandwidth signals is never better than hundreds of meters. Slight velocity mismatches between the signal and filter degrade crosspath resolution considerably so that the scatterers' velocity must be known accurately a priori. Crosspath resolution is relatively insensitive to mismatch in signal and filter record lengths. Random fluctuations of the velocity of a scatterer seriously degrade crosspath resolution. For the typical tropolink parameters and with a 10 m/s scatterer crosspath velocity and a 0.2 m/s standard deviation ion fluctuation the crosspath resolution degrades by an order of magnitude. It is concluded that the matched filter imaging scheme will produce images of individual scatterers if specific atmospheric conditions ions exist. The best results are obtained if the received signal comes from a single scattering layer at a known height, with scatterers moving at a known constant horizontal velocity, with no along-path or vertical components. Such a layer would be observed during night time or early morning when convective and mixing processes are at a minimum." @default.
- W1990745559 created "2016-06-24" @default.
- W1990745559 creator A5021358393 @default.
- W1990745559 date "1975-03-01" @default.
- W1990745559 modified "2023-10-16" @default.
- W1990745559 title "High-Resolution Imaging of Tropospheric Radio Scatterers" @default.
- W1990745559 cites W1968754721 @default.
- W1990745559 cites W2019780887 @default.
- W1990745559 cites W2022762342 @default.
- W1990745559 cites W2028450623 @default.
- W1990745559 cites W2151524235 @default.
- W1990745559 cites W2161136187 @default.
- W1990745559 doi "https://doi.org/10.1109/taes.1975.308050" @default.
- W1990745559 hasPublicationYear "1975" @default.
- W1990745559 type Work @default.
- W1990745559 sameAs 1990745559 @default.
- W1990745559 citedByCount "0" @default.
- W1990745559 crossrefType "journal-article" @default.
- W1990745559 hasAuthorship W1990745559A5021358393 @default.
- W1990745559 hasConcept C106131492 @default.
- W1990745559 hasConcept C120665830 @default.
- W1990745559 hasConcept C121332964 @default.
- W1990745559 hasConcept C138268822 @default.
- W1990745559 hasConcept C153294291 @default.
- W1990745559 hasConcept C154945302 @default.
- W1990745559 hasConcept C191486275 @default.
- W1990745559 hasConcept C199360897 @default.
- W1990745559 hasConcept C205372480 @default.
- W1990745559 hasConcept C2776257435 @default.
- W1990745559 hasConcept C2779843651 @default.
- W1990745559 hasConcept C31972630 @default.
- W1990745559 hasConcept C41008148 @default.
- W1990745559 hasConcept C6260449 @default.
- W1990745559 hasConcept C76155785 @default.
- W1990745559 hasConcept C9075549 @default.
- W1990745559 hasConceptScore W1990745559C106131492 @default.
- W1990745559 hasConceptScore W1990745559C120665830 @default.
- W1990745559 hasConceptScore W1990745559C121332964 @default.
- W1990745559 hasConceptScore W1990745559C138268822 @default.
- W1990745559 hasConceptScore W1990745559C153294291 @default.
- W1990745559 hasConceptScore W1990745559C154945302 @default.
- W1990745559 hasConceptScore W1990745559C191486275 @default.
- W1990745559 hasConceptScore W1990745559C199360897 @default.
- W1990745559 hasConceptScore W1990745559C205372480 @default.
- W1990745559 hasConceptScore W1990745559C2776257435 @default.
- W1990745559 hasConceptScore W1990745559C2779843651 @default.
- W1990745559 hasConceptScore W1990745559C31972630 @default.
- W1990745559 hasConceptScore W1990745559C41008148 @default.
- W1990745559 hasConceptScore W1990745559C6260449 @default.
- W1990745559 hasConceptScore W1990745559C76155785 @default.
- W1990745559 hasConceptScore W1990745559C9075549 @default.
- W1990745559 hasIssue "2" @default.
- W1990745559 hasLocation W19907455591 @default.
- W1990745559 hasOpenAccess W1990745559 @default.
- W1990745559 hasPrimaryLocation W19907455591 @default.
- W1990745559 hasRelatedWork W1983224196 @default.
- W1990745559 hasRelatedWork W1998775113 @default.
- W1990745559 hasRelatedWork W2003431601 @default.
- W1990745559 hasRelatedWork W2017853288 @default.
- W1990745559 hasRelatedWork W2035326386 @default.
- W1990745559 hasRelatedWork W2056500845 @default.
- W1990745559 hasRelatedWork W2083552051 @default.
- W1990745559 hasRelatedWork W2094163144 @default.
- W1990745559 hasRelatedWork W2112603445 @default.
- W1990745559 hasRelatedWork W2296336181 @default.
- W1990745559 hasVolume "AES-11" @default.
- W1990745559 isParatext "false" @default.
- W1990745559 isRetracted "false" @default.
- W1990745559 magId "1990745559" @default.
- W1990745559 workType "article" @default.