Three-dimensional coherent radar imaging: lessons from the Jicamarca MST experiments

dc.contributor.authorWoodman Pollitt, Ronald Francisco
dc.contributor.authorChau Chong Shing, Jorge Luis
dc.date.accessioned2017-12-21T19:41:56Z
dc.date.available2017-12-21T19:41:56Z
dc.date.issued2000
dc.descriptionResumen.es_ES
dc.description.abstractWe have implemented seven- and eight-module configurations at Jicamarca (see, Figure 1 for details of the eight-module configuration). Such configurations allow -80% and -84% sample, respectively, of the total visibility plane that can be obtained using one quarter (= 16 modules) of the Jicamarca antenna. Measurements are made in the lower atmosphere (3-22 km) and upper atmosphere (65-80 km). We follow closely the theoretical development presented by Woodman, 1997 (Radio Sci., 32, 2373-2391). Different practical considerations are applied to both cases; for example, near-field effects are removed linearly in the lower-atmospheric measurements in order to get a focus image. In addition, we have implemented different algorithms to sol ve for the inverse problem, i.e., to obtained the atmospheric brightness distribution. As a first approach to the inverse problem, we have assumed a brightness distribution characterized by two Gaussian blobs. Each Gaussian blob consists of six parameters: angular positions (2), major and minor axis, angle of rotation, and relative intensity. Finally, we evaluate the gain obtained using our scheme as compared to the classical three non-collinear spaced antenna configuration.
dc.description.sponsorshipROJ
dc.formatapplication/pdf
dc.identifier.urihttp://hdl.handle.net/20.500.12816/678
dc.language.isoeng
dc.publisherInstituto Geofísico del Perú, Radio Observatorio de Jicamarca
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectImágenes tridimensionales
dc.subjectRadio Observatorio de Jicamarca
dc.subjectRadar coherente
dc.subjectAntenas (Electrónica)
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01
dc.titleThree-dimensional coherent radar imaging: lessons from the Jicamarca MST experiments
dc.typeinfo:eu-repo/semantics/other

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