FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4281566197> ?p ?o ?g. }

• W4281566197 endingPage "747" @default.
• W4281566197 startingPage "747" @default.
• W4281566197 abstract "In this study, a method based on the discrete wavelet transform (DWT) and azimuth-scale expansion is presented to retrieve the sea-surface wind direction from a single X-band marine radar image. The algorithm first distinguishes rain-free and rain-contaminated radar images based on the occlusion zero-pixel percentage and then discards the rain-contaminated images. The radar image whose occlusion areas have been removed is decomposed into different low-frequency sub-images by the 2D DWT, and the appropriate low-frequency sub-image is selected. Images collected with a standard marine HH-polarized X-band radar operating at grazing incidence display a single intensity peak in the upwind direction. To overcome the influence of the occlusion area, before determining the wind direction, the data near the ship bow are shifted to expand the azimuth scale of the data. Finally, a harmonic function is least-square-fitted to the range-averaged radar return of the low-frequency sub-image as a function of the antenna look azimuth to determine the wind direction. Different from the wind-direction retrieval algorithms previously presented, this method is more suitable for sailing ships, as it functions well even if the radar data are heavily blocked. The results show that compared with the single-curve fitting algorithm, the algorithm based on DWT and azimuth-scale expansion can improve the wind-direction results in sailing ships, showing a reduction of 7.84° in the root-mean-square error with respect to the reference." @default.
• W4281566197 created "2022-05-27" @default.
• W4281566197 creator A5015628923 @default.
• W4281566197 creator A5078659132 @default.
• W4281566197 creator A5090366405 @default.
• W4281566197 date "2022-05-24" @default.
• W4281566197 modified "2023-09-30" @default.
• W4281566197 title "Wind-Direction Estimation from Single X-Band Marine Radar Image Improvement by Utilizing the DWT and Azimuth-Scale Expansion Method" @default.
• W4281566197 cites W1511187889 @default.
• W4281566197 cites W1994581156 @default.
• W4281566197 cites W1998611806 @default.
• W4281566197 cites W2018058208 @default.
• W4281566197 cites W2019934288 @default.
• W4281566197 cites W2025162356 @default.
• W4281566197 cites W2027282652 @default.
• W4281566197 cites W2034247534 @default.
• W4281566197 cites W2054261558 @default.
• W4281566197 cites W2057072702 @default.
• W4281566197 cites W2064883310 @default.
• W4281566197 cites W2065979037 @default.
• W4281566197 cites W2134222349 @default.
• W4281566197 cites W2148703416 @default.
• W4281566197 cites W2149175567 @default.
• W4281566197 cites W2157730826 @default.
• W4281566197 cites W2157872591 @default.
• W4281566197 cites W2166982406 @default.
• W4281566197 cites W2172509751 @default.
• W4281566197 cites W2563915952 @default.
• W4281566197 cites W2617899471 @default.
• W4281566197 cites W2744782154 @default.
• W4281566197 cites W2765641730 @default.
• W4281566197 cites W2774732543 @default.
• W4281566197 cites W2792696662 @default.
• W4281566197 cites W2794648063 @default.
• W4281566197 cites W3128733368 @default.
• W4281566197 cites W3135084945 @default.
• W4281566197 cites W3147702910 @default.
• W4281566197 cites W3162473923 @default.
• W4281566197 cites W3164346015 @default.
• W4281566197 cites W995995084 @default.
• W4281566197 doi "https://doi.org/10.3390/e24060747" @default.
• W4281566197 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35741468" @default.
• W4281566197 hasPublicationYear "2022" @default.
• W4281566197 type Work @default.
• W4281566197 citedByCount "1" @default.
• W4281566197 countsByYear W42815661972023 @default.
• W4281566197 crossrefType "journal-article" @default.
• W4281566197 hasAuthorship W4281566197A5015628923 @default.
• W4281566197 hasAuthorship W4281566197A5078659132 @default.
• W4281566197 hasAuthorship W4281566197A5090366405 @default.
• W4281566197 hasBestOaLocation W42815661971 @default.
• W4281566197 hasConcept C107775477 @default.
• W4281566197 hasConcept C10929652 @default.
• W4281566197 hasConcept C111368507 @default.
• W4281566197 hasConcept C127313418 @default.
• W4281566197 hasConcept C159737794 @default.
• W4281566197 hasConcept C161067210 @default.
• W4281566197 hasConcept C2524010 @default.
• W4281566197 hasConcept C33923547 @default.
• W4281566197 hasConcept C41008148 @default.
• W4281566197 hasConcept C554190296 @default.
• W4281566197 hasConcept C62649853 @default.
• W4281566197 hasConcept C76155785 @default.
• W4281566197 hasConceptScore W4281566197C107775477 @default.
• W4281566197 hasConceptScore W4281566197C10929652 @default.
• W4281566197 hasConceptScore W4281566197C111368507 @default.
• W4281566197 hasConceptScore W4281566197C127313418 @default.
• W4281566197 hasConceptScore W4281566197C159737794 @default.
• W4281566197 hasConceptScore W4281566197C161067210 @default.
• W4281566197 hasConceptScore W4281566197C2524010 @default.
• W4281566197 hasConceptScore W4281566197C33923547 @default.
• W4281566197 hasConceptScore W4281566197C41008148 @default.
• W4281566197 hasConceptScore W4281566197C554190296 @default.
• W4281566197 hasConceptScore W4281566197C62649853 @default.
• W4281566197 hasConceptScore W4281566197C76155785 @default.
• W4281566197 hasFunder F4320321001 @default.
• W4281566197 hasIssue "6" @default.
• W4281566197 hasLocation W42815661971 @default.
• W4281566197 hasLocation W42815661972 @default.
• W4281566197 hasLocation W42815661973 @default.
• W4281566197 hasLocation W42815661974 @default.
• W4281566197 hasOpenAccess W4281566197 @default.
• W4281566197 hasPrimaryLocation W42815661971 @default.
• W4281566197 hasRelatedWork W1537845529 @default.
• W4281566197 hasRelatedWork W1585281834 @default.
• W4281566197 hasRelatedWork W1589474306 @default.
• W4281566197 hasRelatedWork W1694797282 @default.
• W4281566197 hasRelatedWork W2006246348 @default.
• W4281566197 hasRelatedWork W2045966457 @default.
• W4281566197 hasRelatedWork W2048218139 @default.
• W4281566197 hasRelatedWork W2105285211 @default.
• W4281566197 hasRelatedWork W2116394631 @default.
• W4281566197 hasRelatedWork W2352804472 @default.
• W4281566197 hasVolume "24" @default.
• W4281566197 isParatext "false" @default.
• W4281566197 isRetracted "false" @default.
• W4281566197 workType "article" @default.