Possibility of reducing requirements imposed on the stability of oscillators in radio interferometers with incoherent response

Details Possibility of reducing requirements imposed on the stability of oscillators in radio interferometers with incoherent response Possibility of reducing requirements imposed on the stability of oscillators in radio interferometers with incoherent response

Aug 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ge%26ae..16..734b&link_type=abstract

Geomagnetizm i Aeronomiia, vol. 16, July-Aug. 1976, p. 734-736. In Russian.

Other

Interplanetary Medium, Phase Coherence, Radio Communication, Radio Interferometers, Spacecraft Communication, Stable Oscillations, Ground-Air-Ground Communication, Incoherence, Interrogation, Oscillators, Plasma-Electromagnetic Interaction

Scientific paper

It is noted that radio interferometry with an interrogation station aboard a spacecraft and a response station on earth may be used to investigate processes originating in the interplanetary plasma but encounters serious difficulty due to breakdown of coherency between the interrogation and response signals. The present paper shows that the introduction of two interrogation channels with different frequencies will, in principle, eliminate frequency drift between independent oscillators and will sharply reduce the requirements for oscillator stability. An analysis is performed which demonstrates the accuracy of the proposed technique and the reduced stability requirements when investigating interplanetary tangential discontinuities, detached plasma formations in the magnetosphere, and other such phenomena.

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