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dc.contributor.author Gao, B.
dc.contributor.author Mathews, J. D.
dc.date.accessioned 2018-11-15T15:17:36Z
dc.date.available 2018-11-15T15:17:36Z
dc.date.issued 2014-12-08
dc.identifier.issn 1365-2966
dc.identifier.uri http://repositorio.igp.gob.pe/handle/IGP/3621
dc.description.abstract "The Jicamarca Radio Observatory (JRO) main 50-MHz array antenna radar system with multiple receivers is being used to study meteors via two interferometric receiving modes. One of the major challenges in these studies is the phase calibration of the various receiver (interferometric) channels (legs). While investigating some ambiguous features in meteor head-echo results, we developed a ‘new’ calibration technique that employs satellite observations to produce more accurate phase and pattern measurements than were previously available. This calibration technique, which resolves head-echo ambiguities, uses the fact that Earth-orbiting satellites are in gravitationally well-defined orbits and thus the pulse-to-pulse radar returns must be consistent (coherent) for an entire satellite pass through the radar beam. In particular, the satellite yields a reliable point source for phase and thus interferometry-derived range, Doppler and trajectory calibration. Using several satellites observed during standard meteor observations, we derive satellite orbital parameters by matching the observed and modelled three-dimensional trajectory and Doppler results. This approach uncovered subtle phase distortions that led to interferometry-derived trajectory distortions that are important only to point targets such as meteor head-echoes. We present the array calibration and radar imaging of satellite passes from our meteor observations of 2010 April 15/16. Future observations of a priori known satellites would likely yield significantly more accurate calibrations, especially of distant side lobes". es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Monthly Notices of the Royal Astronomical Society es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.rights.uri http://creativecommons.org/licences/restrictedAccess es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Radio Observatorio de Jicamarca es_ES
dc.subject Radar--Perú--Observaciones es_ES
dc.subject Radar--Observaciones es_ES
dc.subject Satélites artificiales es_ES
dc.subject Meteoros es_ES
dc.subject Efecto Doppler es_ES
dc.subject Antenas es_ES
dc.subject Calibración es_ES
dc.title Phase and pattern calibration of the Jicamarca Radio Observatory radar using satellites es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Radar es_ES
dc.subject.ocde Observación es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Experimentos es_ES
dc.subject.ocde Simulación es_ES
dc.identifier.journal Monthly Notices of the Royal Astronomical Society es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1093/mnras/stu2177 es_ES

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