Matches in SemOpenAlex for { <https://semopenalex.org/work/W2116721035> ?p ?o ?g. }
Showing items 1 to 100 of
100
with 100 items per page.
- W2116721035 abstract "Conventional radar imaging systems use Fourier transform for image formation, but due to the target's complicated motion the Doppler spectrum is time-varying and thus the reconstructed image becomes blurred even after applying standard motion compensation algorithms. Therefore, sophisticated algorithms such as polar reformatting are usually employed to produce clear images. Alternatively, Joint Time-Frequency (JTF) analysis can be used for image formation which produces clear image without using polar reformatting algorithm. In this paper, a new JTF-based method is proposed for image formation in inverse synthetic aperture radars (ISAR). This method uses minimum entropy criterion for optimum parameter adjustment of JTF algorithms. Short Time Fourier Transform (STFT) and Fractional Fourier Transform (FrFT) are applied as JTF for time-varying Doppler spectrum analysis. Both the width of Gaussian window of STFT and the order of FrFT, α, are adjusted using minimum entropy as local and total measures. Furthermore, a new statistical parameter, called normalized correlation, is defined for comparison of images reconstructed by different methods. Simulation results show that α-order FrFT with local adjustment has much better performance than the other methods in this category even in low SNR." @default.
- W2116721035 created "2016-06-24" @default.
- W2116721035 creator A5083836126 @default.
- W2116721035 creator A5085166839 @default.
- W2116721035 date "2009-01-01" @default.
- W2116721035 modified "2023-09-22" @default.
- W2116721035 title "ISAR Image Formation Based on Minimum Entropy Criterion and Fractional Fourier Transform" @default.
- W2116721035 cites W1611211354 @default.
- W2116721035 cites W1868295402 @default.
- W2116721035 cites W2003641063 @default.
- W2116721035 cites W2023026492 @default.
- W2116721035 cites W2026745481 @default.
- W2116721035 cites W2060059906 @default.
- W2116721035 cites W2074617333 @default.
- W2116721035 cites W2086116263 @default.
- W2116721035 cites W2090697566 @default.
- W2116721035 cites W2099111195 @default.
- W2116721035 cites W2108710836 @default.
- W2116721035 cites W2110063971 @default.
- W2116721035 cites W2126051851 @default.
- W2116721035 cites W2145576488 @default.
- W2116721035 cites W2146065092 @default.
- W2116721035 cites W2154992791 @default.
- W2116721035 cites W2169768670 @default.
- W2116721035 cites W2171201045 @default.
- W2116721035 cites W3151807103 @default.
- W2116721035 cites W606473257 @default.
- W2116721035 doi "https://doi.org/10.1587/transcom.e92.b.2714" @default.
- W2116721035 hasPublicationYear "2009" @default.
- W2116721035 type Work @default.
- W2116721035 sameAs 2116721035 @default.
- W2116721035 citedByCount "4" @default.
- W2116721035 countsByYear W21167210352016 @default.
- W2116721035 countsByYear W21167210352017 @default.
- W2116721035 crossrefType "journal-article" @default.
- W2116721035 hasAuthorship W2116721035A5083836126 @default.
- W2116721035 hasAuthorship W2116721035A5085166839 @default.
- W2116721035 hasConcept C102519508 @default.
- W2116721035 hasConcept C106301342 @default.
- W2116721035 hasConcept C109094680 @default.
- W2116721035 hasConcept C10929652 @default.
- W2116721035 hasConcept C11413529 @default.
- W2116721035 hasConcept C121332964 @default.
- W2116721035 hasConcept C134306372 @default.
- W2116721035 hasConcept C154945302 @default.
- W2116721035 hasConcept C166386157 @default.
- W2116721035 hasConcept C203024314 @default.
- W2116721035 hasConcept C31972630 @default.
- W2116721035 hasConcept C33923547 @default.
- W2116721035 hasConcept C41008148 @default.
- W2116721035 hasConcept C554190296 @default.
- W2116721035 hasConcept C62520636 @default.
- W2116721035 hasConcept C76155785 @default.
- W2116721035 hasConcept C76563020 @default.
- W2116721035 hasConcept C87360688 @default.
- W2116721035 hasConceptScore W2116721035C102519508 @default.
- W2116721035 hasConceptScore W2116721035C106301342 @default.
- W2116721035 hasConceptScore W2116721035C109094680 @default.
- W2116721035 hasConceptScore W2116721035C10929652 @default.
- W2116721035 hasConceptScore W2116721035C11413529 @default.
- W2116721035 hasConceptScore W2116721035C121332964 @default.
- W2116721035 hasConceptScore W2116721035C134306372 @default.
- W2116721035 hasConceptScore W2116721035C154945302 @default.
- W2116721035 hasConceptScore W2116721035C166386157 @default.
- W2116721035 hasConceptScore W2116721035C203024314 @default.
- W2116721035 hasConceptScore W2116721035C31972630 @default.
- W2116721035 hasConceptScore W2116721035C33923547 @default.
- W2116721035 hasConceptScore W2116721035C41008148 @default.
- W2116721035 hasConceptScore W2116721035C554190296 @default.
- W2116721035 hasConceptScore W2116721035C62520636 @default.
- W2116721035 hasConceptScore W2116721035C76155785 @default.
- W2116721035 hasConceptScore W2116721035C76563020 @default.
- W2116721035 hasConceptScore W2116721035C87360688 @default.
- W2116721035 hasLocation W21167210351 @default.
- W2116721035 hasOpenAccess W2116721035 @default.
- W2116721035 hasPrimaryLocation W21167210351 @default.
- W2116721035 hasRelatedWork W1985302241 @default.
- W2116721035 hasRelatedWork W2066865932 @default.
- W2116721035 hasRelatedWork W2081625049 @default.
- W2116721035 hasRelatedWork W2145706155 @default.
- W2116721035 hasRelatedWork W2155097560 @default.
- W2116721035 hasRelatedWork W2160761645 @default.
- W2116721035 hasRelatedWork W2254915314 @default.
- W2116721035 hasRelatedWork W2296819311 @default.
- W2116721035 hasRelatedWork W2354783758 @default.
- W2116721035 hasRelatedWork W2354786665 @default.
- W2116721035 hasRelatedWork W2356861231 @default.
- W2116721035 hasRelatedWork W2360621160 @default.
- W2116721035 hasRelatedWork W2361390234 @default.
- W2116721035 hasRelatedWork W2379346169 @default.
- W2116721035 hasRelatedWork W2394415089 @default.
- W2116721035 hasRelatedWork W2527805487 @default.
- W2116721035 hasRelatedWork W2581983442 @default.
- W2116721035 hasRelatedWork W2894518767 @default.
- W2116721035 hasRelatedWork W2019323783 @default.
- W2116721035 hasRelatedWork W3182239283 @default.
- W2116721035 isParatext "false" @default.
- W2116721035 isRetracted "false" @default.
- W2116721035 magId "2116721035" @default.
- W2116721035 workType "article" @default.