Phase calibration for the block 1 VLBI system

Details Phase calibration for the block 1 VLBI system Phase calibration for the block 1 VLBI system

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983tdar.nasa...54r&link_type=abstract

In its The Telecommun. and Data Acquisition Rept. p 54-62 (SEE N83-34960 23-12)

Astronomy and Astrophysics

Astronomy

Bandwidth, Calibrating, Estimates, Radio Navigation, Radio Sources (Astronomy), Signal Processing, Very Long Base Interferometry, Correlation, Data Acquisition, Doppler Effect, Earth Orientation, Interpolation, Mathematical Models, Phase Shift

Scientific paper

Very Long Baseline Interferometry (VLBI) in the DSN provides support for spacecraft navigation, Earth orientation measurements, and synchronization of network time and frequency standards. An improved method for calibrating instrumental phase shifts has recently been implemented as a computer program in the Block 1 system. The new calibration program, called PRECAL, performs calibrations over intervals as small as 0.4 seconds and greatly reduces the amount of computer processing required to perform phase calibration.

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