A medium-frequency interferometer for studying auroral radio emissions

Details A medium-frequency interferometer for studying auroral radio emissions A medium-frequency interferometer for studying auroral radio emissions

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000rsci...71.3200h&link_type=abstract

Review of Scientific Instruments, Volume 71, Issue 8, pp. 3200-3206 (2000).

Astronomy and Astrophysics

Astronomy

7

Radio Telescopes And Instrumentation, Heterodyne Receivers, Astrometric And Interferometric Instruments

Scientific paper

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.

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