Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Microwave_imaging> ?p ?o }
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- Microwave_imaging abstract "Microwave imaging is a science which has been evolved from older detecting/locating techniques (e.g., radar) in order to evaluate hidden or embedded objects in a structure (or media)using electromagnetic (EM) waves in microwave regime (i.e., ~300 MHz-300 GHz). Microwave imaging techniques can be classified as either quantitative or qualitative. Quantitative imaging techniques (are also known as inverse scattering methods) give the electrical (i.e., electrical and magnetic property distribution) and geometrical parameters (i.e., shape, size and location) of an imaged object by solving a nonlinear inverse problem. The nonlinear inverse problem is converted into a linear inverse problem (i.e., Ax=b where A and b are known and x (or image) is unknown) by using Born or distorted Born approximations. Despite the fact that direct matrix inversion methods can be invoked to solve the inversion problem, this will be so costly when the size of the problem is so big (i.e., when A is a very dense and big matrix). To overcome this problem, direct inversion is replaced with iterative solvers. Techniques in this class are called forward iterative methods which are usually time consuming.On the other hand, qualitative microwave imaging methods calculate a qualitative profile (which is called as reflectivity function or qualitative image) to represent the hidden object. These techniques use approximations to simplify the imaging problem and then they use back-propagation (also called time reversal, phase compensation, or back-migration) to reconstruct the unknown image profile. Synthetic aperture radar (SAR), ground-penetrating radar (GPR), and frequency-wave number migration algorithm are some of the most popular qualitative microwave imaging methods[1].".
- Microwave_imaging thumbnail A_General_View_of_a_Microwave_Imaging_System.JPG?width=300.
- Microwave_imaging wikiPageExternalLink 41515.
- Microwave_imaging wikiPageExternalLink 41515).
- Microwave_imaging wikiPageID "42691862".
- Microwave_imaging wikiPageLength "7909".
- Microwave_imaging wikiPageOutDegree "10".
- Microwave_imaging wikiPageRevisionID "654016427".
- Microwave_imaging wikiPageWikiLink Antenna_(radio).
- Microwave_imaging wikiPageWikiLink Category:Measuring_instruments.
- Microwave_imaging wikiPageWikiLink Category:Microwave_technology.
- Microwave_imaging wikiPageWikiLink Category:Radar.
- Microwave_imaging wikiPageWikiLink Ground-penetrating_radar.
- Microwave_imaging wikiPageWikiLink Microwave.
- Microwave_imaging wikiPageWikiLink Radar.
- Microwave_imaging wikiPageWikiLink Synthetic_aperture_radar.
- Microwave_imaging wikiPageWikiLink File:3D_image_of_rebars_with_corrosion_produced_using_microwave_imaging..JPG.
- Microwave_imaging wikiPageWikiLink File:A_General_View_of_a_Microwave_Imaging_System.JPG.
- Microwave_imaging wikiPageWikiLinkText "microwave imaging".
- Microwave_imaging wikiPageUsesTemplate Template:Reflist.
- Microwave_imaging subject Category:Measuring_instruments.
- Microwave_imaging subject Category:Microwave_technology.
- Microwave_imaging subject Category:Radar.
- Microwave_imaging hypernym Science.
- Microwave_imaging type Work.
- Microwave_imaging comment "Microwave imaging is a science which has been evolved from older detecting/locating techniques (e.g., radar) in order to evaluate hidden or embedded objects in a structure (or media)using electromagnetic (EM) waves in microwave regime (i.e., ~300 MHz-300 GHz). Microwave imaging techniques can be classified as either quantitative or qualitative.".
- Microwave_imaging label "Microwave imaging".
- Microwave_imaging sameAs Q17010029.
- Microwave_imaging sameAs m.010hmv66.
- Microwave_imaging sameAs Q17010029.
- Microwave_imaging wasDerivedFrom Microwave_imaging?oldid=654016427.
- Microwave_imaging depiction A_General_View_of_a_Microwave_Imaging_System.JPG.
- Microwave_imaging isPrimaryTopicOf Microwave_imaging.