1
objeto de conferencia
Resumen.
2
documento de trabajo
The MPI-SOUSY radar has been moved from its original location at the Harz Mountains, Germany, to the Jicamarca Observatory. Two main modifications have been made to the system: 1) The antenna array now consist of 126 Yagis deployed in an square array of 16x16, 4 element Yagis, similar to the original ones, and 2) the control and data acquisition system has been modernized as described later on. The phase steering system has not been implemented yet, but is planned for the future.
3
ponencia
Publicado 2010
Enlace
Enlace
Diapositivas de una presentación oral realizada en Arecibo, Puerto Rico, en el año 2010.
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otro
Publicado 2003
Enlace
Enlace
The main characteristics that differentiate the SOUSY radar from the Jicamarca radar are: (1) its bandwidth (4 MHz against 700 KHz for the Jicamarca radar) and (2) its steerability. The wider bandwidth allows an altitude resolution of at least 75 meters. The Sousy radar is a phased array that allows for a wide and agile steerability of its antenna (+/- 15°). In order to satisfy our scientific need, we have redesigned the antenna to have two main positions, zenithal and 15° south.
5
ponencia
Diapositivas presentadas en la conferencia "La Ingeniería Electrónica y el mundo Empresarial", realizado en la PUCP el 28 de mayo de 2009.
6
objeto de conferencia
El Radio Observatorio de Jicamarca (ROJ) es la principal estación ecuatorial de la cadena de radio observatorios de dispersión incoherente (cuyas siglas en inglés es ISR) del hemisferio oeste que se extienden desde Lima - Perú hasta Søndre Strømfjord, Groelandia y la más importante en el mundo para estudiar la ionósfera ecuatorial. Esta compuesto de tres transmisores de 1.5 MW y un arreglo de antenas de 18,432 dipolos, cubriendo un área aproximada de 85,000 m2. El estudio de la ionósfera ecuatorial ha adquirido mayor importancia debido, en gran parte,a las contribuciones hechas por el Radio Observatorio de Jicamarca. El Observatorio se ubica a media hora de viaje en automóvil hacía el este de Lima y a 10 kms de la Carretera Central (latitud 11.95°Sur, longitud 76.87° Oeste).
7
documento de trabajo
Publicado 1995
Enlace
Enlace
Vertical velocity measurements of atmospheric winds are becoming increasingly important. To obtain the long-term mean vertical motion of the atmosphere is difficult to do, both because of the small velocities involved and because of the finite width of the antenna beam. Since the vertical wind measurement is very sensitive to the tilt of the vertically-directed antenna beam, we decided to get the Jicamarca beam direction by measuring the phase and amplitude of a reference signal at each of the antenna feed points. Our results tell us that, while the antenna pointing direction is already good, there is room for improvement.
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