Real-time, very-long-baseline interferometry based on the use of a communications satellite.
The Hermes satellite, a joint Canadian-American program, has been used to provide a communication channel between radio telescopes in West Virginia and Ontario, for very-long-baseline interferometry (VLBI). This system makes possible instantaneous correlation of the data as well as a sensitivity substantially better than that of earlier VLBI systems, by virtue of a broader observational bandwidth. With the use of a geostationary communications satellite it is possible to eliminate the tape recorders and the most troublesome part of the postobservational data processing. A further possibility is the development of a phase-coherent interferometer.
Yen
J L
JL
Kellermann
K I
KI
Rayhrer
B
B
Broten
N W
NW
Fort
D N
DN
Knowles
S H
SH
Waltman
W B
WB
Swenson
G W
GW