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Mostrando ítems 1261-1280 de 1702
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(Instituto Geofísico del Perú, 2005-06)"After more than 40 years using analog receivers at the Jicamarca Radio Observatory (JRO) and continuing with the idea to develop improved acquisition systems, we have now implemented a new system based on an o -the-shelf ...
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(1993)Se explica una de las causas principales de la destrucción de la capa de ozono y se da a conocer el esfuerzo de un grupo de científicos e ingenieros peruanos por contribuir a estudiar este problema, mediante el diseño y ...
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(Instituto Geofísico del Perú, 2010)Diapositivas presentadas en el II Encuentro Nacional de Radio Científicos e Investigadores Afines 2010 (URSI- PERÚ), llevado a cabo en la Pontificia Universidad Católica del Perú.
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(Instituto Geofísico del Perú, 2009-07-06)"Radar cross sections (RCS) of mesospheric layers at 50 MHz observed at Jicamarca, Peru, range from 10−18 to 10−16 m−1, three orders of magnitudes smaller than cross sections reported for polar mesospheric winter echoes ...
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(Instituto Geofísico del Perú, 2008)Ponencia presentada en el Radio Observatorio de Jicamarca.
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(Instituto Geofísico del Perú, 2017-11)"We present new range-Doppler images of the Moon using 6-mwavelength. The radar images were obtained using the Jicamarca Radio Observatory 49.92 MHz radar. The observations were performed using circular polarization on ...
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(Instituto Geofísico del Perú, 2013-10)A novel technique for radar-imaging inversions is proposed which leverages ideas from the emerging field of compressed sensing. This new method takes advantage of the transform sparsity inherent in natural images. Theoretical ...
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(1974)Some characteristic parameters of gravity waves at D and E region heights such as amplitude, frequency spectrum and spatial properties can and have been measured by means of VHF radars. One of the techniques makes use of ...
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(Instituto Geofísico del Perú, 2010)Diapositivas presentadas en la conferencia organizada por la Stanford University, in June 30, 2010)
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(Instituto Geofísico del Perú, 1989-01-15)El propósito de este artículo es informar un caso excepcional, en el que la transferencia se ha hecho en sentido contrario, específicamente del Perú a países como Estados Unidos, Alemania Federal y Japón.
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(International Research Journal of Earth Sciences, 2015-10-24)"Long-term data set of radar observations using coherent and incoherent scatter radar sources during 1996-2008 were used to study the trend of low-latitude ionospheric irregularities, also referred to as equatorial spread ...
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(Instituto Geofísico del Perú, 1972-10-01)"Radar observations of a welldeveloped layer of strong equatorial spread F are presented. The scattering cross section, correlation lifetime, and vertical electromagnetic drift velocity of the spread-F irregularities were ...
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(Instituto Geofísico del Perú, 1976-11-01)"Experimental results obtained with the Jicamarca radar and a new digital processing system during spread F conditions are presented. The data consist of two‐dimensional maps showing backscatter power and samples of frequency ...
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(1974)In the period from 13 Sept to 20 Sept 1979, the 430 MHz radar system at the Arecibo Observatory was used to study profiles of vertical velocity in developing and mature thunderstorms during the afternoon hours. During ...
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(Instituto Geofísico del Perú, 2010)Diapositivas de una presentación oral realizada en la University de Nagoya, Japan en el año 2010.
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(1984-06)During the last decade there has been a rapid development of radar techniques and installations for the study of middle atmospheric dynamics. Of special interest to this meeting are the capabilities of the technique to ...
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(Instituto Geofísico del Perú, 2010)Presentación interna del Radio Observatorio de Jicamarca-IGP.
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(Instituto Geofísico del Perú, 1976-01-01)"Observations with an altitude resolution of about 1 km were made with the large, vertically directed 50‐MHz radar system at the Jicamarca Radar Observatory during the day, when the electrojet was strong. Type 1 (‘two ...
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(Instituto Geofísico del Perú, 1972-08-16)"A technique for the observation of radar echoes from stratospheric and mesospheric heights has been developed at the Jicamarca Radio Observatory. Signals are detected at the altitude ranges between 10–35 km and from 55–85 ...
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(Geophysical Research Letters, 2008-02-26)"The first results from the 430 MHz Advanced Modular Incoherent Scatter Radar Prototype (AMISR‐P) at the Jicamarca Radio Observatory were reported by Hysell et al. (2007). We present additional data showing that the phase ...
Mostrando ítems 1261-1280 de 1702
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