Matches in SemOpenAlex for { <https://semopenalex.org/work/W1639232868> ?p ?o ?g. }
Showing items 1 to 60 of
60
with 100 items per page.
- W1639232868 abstract "The most troublesome phenomenon of SAR images is range migration. Migrations are of two types, linear or parabolic. Linear migrations are directly proportional to the average Doppler frequency of signal. Parabolic migrations depend on the variation of the Doppler frequency, that is, on the quadratic component of phase. The phase function of return signals is not the ideal phase function deduced from the observed geometry. It is interfered by spurious motion of the platform during image acquisition; by instabilities of the frequency source and the radar transmitter; by quantization noise and the inaccuracy of parameters; and by the fact that the exact geometry of the terrain observed is not taken into account. Phase error function is the result of adding a function composed of low frequencies to a function composed of high frequencies. For airborne radar, platform motion has a determining influence on image quality. Platform movements are divided into three broad categories: motion along the flight path, transverse motion, and vibrations. The stability of frequency source is characterized by slow deviations in frequency, spurious lines, and phase noise spectrum. Certain pulse compression radars use analog or digital processes to perform range compression prior to Doppler processing. When a programmable computer is available, it is possible to take advantage of the two-dimensional Fourier transform calculation to perform both processing operations simultaneously in the frequency domain." @default.
- W1639232868 created "2016-06-24" @default.
- W1639232868 creator A5001154471 @default.
- W1639232868 creator A5005359581 @default.
- W1639232868 creator A5020614872 @default.
- W1639232868 creator A5088422352 @default.
- W1639232868 date "2001-01-01" @default.
- W1639232868 modified "2023-09-27" @default.
- W1639232868 title "SYNTHETIC APERTURE RADAR SPECIFIC ASPECTS" @default.
- W1639232868 doi "https://doi.org/10.1016/b978-189112113-5.50018-8" @default.
- W1639232868 hasPublicationYear "2001" @default.
- W1639232868 type Work @default.
- W1639232868 sameAs 1639232868 @default.
- W1639232868 citedByCount "0" @default.
- W1639232868 crossrefType "book-chapter" @default.
- W1639232868 hasAuthorship W1639232868A5001154471 @default.
- W1639232868 hasAuthorship W1639232868A5005359581 @default.
- W1639232868 hasAuthorship W1639232868A5020614872 @default.
- W1639232868 hasAuthorship W1639232868A5088422352 @default.
- W1639232868 hasConcept C120665830 @default.
- W1639232868 hasConcept C121332964 @default.
- W1639232868 hasConcept C19118579 @default.
- W1639232868 hasConcept C24890656 @default.
- W1639232868 hasConcept C31972630 @default.
- W1639232868 hasConcept C41008148 @default.
- W1639232868 hasConcept C87360688 @default.
- W1639232868 hasConceptScore W1639232868C120665830 @default.
- W1639232868 hasConceptScore W1639232868C121332964 @default.
- W1639232868 hasConceptScore W1639232868C19118579 @default.
- W1639232868 hasConceptScore W1639232868C24890656 @default.
- W1639232868 hasConceptScore W1639232868C31972630 @default.
- W1639232868 hasConceptScore W1639232868C41008148 @default.
- W1639232868 hasConceptScore W1639232868C87360688 @default.
- W1639232868 hasLocation W16392328681 @default.
- W1639232868 hasOpenAccess W1639232868 @default.
- W1639232868 hasPrimaryLocation W16392328681 @default.
- W1639232868 hasRelatedWork W1598444345 @default.
- W1639232868 hasRelatedWork W1647386321 @default.
- W1639232868 hasRelatedWork W1865936836 @default.
- W1639232868 hasRelatedWork W1978274415 @default.
- W1639232868 hasRelatedWork W1983426157 @default.
- W1639232868 hasRelatedWork W1990708818 @default.
- W1639232868 hasRelatedWork W2015376906 @default.
- W1639232868 hasRelatedWork W2054890749 @default.
- W1639232868 hasRelatedWork W2103278665 @default.
- W1639232868 hasRelatedWork W2159396008 @default.
- W1639232868 hasRelatedWork W2164115342 @default.
- W1639232868 hasRelatedWork W2236649775 @default.
- W1639232868 hasRelatedWork W3197684097 @default.
- W1639232868 hasRelatedWork W340068946 @default.
- W1639232868 hasRelatedWork W85282314 @default.
- W1639232868 hasRelatedWork W1794486135 @default.
- W1639232868 hasRelatedWork W2028095667 @default.
- W1639232868 hasRelatedWork W2123168710 @default.
- W1639232868 hasRelatedWork W2226478807 @default.
- W1639232868 hasRelatedWork W3018502834 @default.
- W1639232868 isParatext "false" @default.
- W1639232868 isRetracted "false" @default.
- W1639232868 magId "1639232868" @default.
- W1639232868 workType "book-chapter" @default.