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A medium-frequency interferometer for studying auroral radio emissions

Rev. Sci. Instrum. 71, 3200 (2000); doi:10.1063/1.1305518

Issue Date: August 2000

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J. M. Hughes, J. LaBelle, and M. L. Trimpi
Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755
An interferometer for use between 2.5 and 3.0 MHz has recently been developed for the purpose of studying auroral radio emissions. The instrument consists of an array of 17 antennas, associated electronics for amplitude and phase measurements, and computer hardware for instrument control and data recording. In its standard operational mode, the instrument sweeps from 2.5 to 3.0 MHz in 1 kHz steps every 1.5 s. The intensity of the received signal and the phase at each antenna is measured for each 1-kHz-wide bin. These data can be used to produce spectrograms showing the intensity of the received signal versus frequency and time and for determining the direction of arrival for any signal in the instrument bandwidth. ©2000 American Institute of Physics.
History: Received 17 December 1999; accepted 14 March 2000
Permalink: http://link.aip.org/link/?RSINAK/71/3200/1
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KEYWORDS and PACS

Keywords
PACS
  • 94.10.Rk
    Aeronomy and magnetospheric physics Physics of the neutral atmosphere Aurora and airglow
  • 95.55.Jz
    Fundamental astronomy and astrophysics; instrumentation, techniques, and astronomical observations Astronomical and space-research instrumentation Radio telescopes and instrumentation; heterodyne receivers
  • 95.55.Br
    Fundamental astronomy and astrophysics; instrumentation, techniques, and astronomical observations Astronomical and space-research instrumentation Astrometric and interferometric instruments
  • YEAR: 2000

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PUBLICATION DATA

ISSN:
0034-6748 (print)   1089-7623 (online)
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REFERENCES (20)
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