The project of a ground-space radio interferometer with a baseline of up to one million kilometers and coherent radio communication between the telescopes

Details The project of a ground-space radio interferometer with a baseline of up to one million kilometers and coherent radio communication between the telescopes The project of a ground-space radio interferometer with a baseline of up to one million kilometers and coherent radio communication between the telescopes

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981kosis..19..763a&link_type=abstract

Kosmicheskie Issledovaniia, vol. 19, Sept.-Oct. 1981, p. 763-772. In Russian.

Astronomy and Astrophysics

Astronomy

3

Extragalactic Radio Sources, Radio Communication, Radio Interferometers, Radio Sources (Astronomy), Radio Telescopes, Very Long Base Interferometry, Angular Resolution, Centimeter Waves, Channels (Data Transmission), Coherent Radiation

Scientific paper

The present study examines the design of a very-long-baseline interferometer for the investigation of galactic and extragalactic radio sources; the VLBI system will consist of a ground telescope and a space telescope on a high-apogee (0.1-1 million kilometer) satellite. The telescopes are combined with a coherent two-way radio communication channel, which makes it possible to reduce the phase ambiguity of radio-source signals, and to assure measurements of the current baseline and the synchronization of measurements. The basic characteristics of the ultrahigh-resolution centimeter-wave interferometer are examined, including the energy sensitivity with allowance for angular resolution, heterodyne synchronization errors, antenna pointing errors, and parameters of the radio channel for the transmission of data from the space telescope to the earth.

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