Institucional

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https://repositorio.igp.gob.pe/handle/20.500.12816/4319
Libros, boletines, compendios y memorias son las publicaciones que reúne esta comunidad, las cuales han sido editadas por el Instituto Geofísico del Perú en el marco de sus actividades.

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Browsing Institucional by Subject "Antennas"

Now showing 1 - 6 of 6
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    Jicamarca activities, July 2008 - June 2009
    (Instituto Geofísico del Perú, 2009) Instituto Geofísico del Perú
    Diapositivas presentadas en: CEDAR Workshop 2009 del 28 de junio al 2 de julio de 2009 en Santa Fe, Nuevo México, USA.
    Palabras clave:Jicamarca Radio ObservatoryGeophysical observatoriesAntennas
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    Jicamarca antenna arrays: systems and science
    (Instituto Geofísico del Perú, 2005) Woodman Pollitt, Ronald Francisco
    Ponencia preparada para la: Swedish Institute of Space Physics (Institutet för Rymdfysik, IRF).
    Palabras clave:AntennasAeronomyTelecommunications networks
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    Jicamarca highlights 2009-2010
    (Instituto Geofísico del Perú, 2010) Chau Chong Shing, Jorge Luis; Calle, A.
    Diapositivas presentadas en el 2010 CEDAR Workshop, University of Colorado, Boulder, CO, 20-25 June 2010.
    Palabras clave:RadarGeophysical observatoriesAntennas
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    New capabilities of the Jicamarca radar and its cluster of instruments
    (Instituto Geofísico del Perú, 2010) Milla, Marco; Chau Chong Shing, Jorge Luis
    Diapositivas presentadas en The Meeting of the Americas (AGU), llevado a acabo del 8 al 12 de agosto 2010 en la ciudad de Foz do Iguassu, Brasil.
    Palabras clave:Measure instrumentsRadarAtmospheric dispersion
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    Ship-borne VHF radar for upper atmospheric research
    (Instituto Geofísico del Perú, Radio Observatorio de Jicamarca, 1996) Woodman Pollitt, Ronald Francisco; Sarango, M.F.; Soldi, H.
    We have installed a VHF radar on board the Peruvian Vessel BIC Humboldt. Most of radar componentes are similar to those used by the JULIA system at Jicamarca (receptor, transmitor, acquisition (control system). However as expected the antenna design and installation is quite different.
    Palabras clave:High atmosphereGeomagnetismElectrical field
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    Wide-beam forming using binary phase coding
    (Instituto Geofísico del Perú, Radio Observatorio de Jicamarca, 2000) Woodman Pollitt, Ronald Francisco; Chau Chong Shing, Jorge Luis
    In imaging work, it is desirable to have the transmitting beam width matched to the receiving one. One possibility to do this at Jicamarca, when single receiving modules are employed, is using one antenna module as the transmitting array (the whole Jicamarca array consists of 8 by 8 modules). However, with this solution one cannot transmit the high peak power available at Jicamarca (～2 MW). A second solution, where high transmission power is possible, consist on transmitting with ali the antenna modules, but using 4 different sets ofbinary cedes (0 or 180 phase delays), i.e., a two-dimensional complementary phase code. After the decoding process, the information obtained is equivalent to what one would obtain if the high power were transmitted on a single antenna module. The wide beam information is synthesized by adding the second-order statistics obtained with each set of codes. We have tested this idea at Jicamarca to get three-dimensional images of the tropopause and lower stratosphere. For transmission we have used four sets of codes, where each code consists of 4 by 4 elements.
    Palabras clave:Image processingAntennasStratosphere