Computer Science – Performance
Scientific paper
Feb 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976dsn..nasa...67l&link_type=abstract
In its The Deep Space Network p 67-74 (SEE N76-18163 09-12)
Computer Science
Performance
Deep Space Network, Differential Interferometry, Doppler Navigation, Signal To Noise Ratios, Data Sampling, Deep Space Instrumentation Facility, Estimates, Quasars, Time Lag
Scientific paper
The problem of estimating delay difference and Doppler frequency difference is considered for the arrival of a white noise signal from a distant quasar at two widely separated receiving stations on earth. The nonlinear Barankin bound is reviewed as it applies to the very long baseline interferometry (VLBI) problem, and used to evaluate the signal-to-noise ratio threshold for VLBI estimates. The performance of several sampling strategies for VLBI data is compared.
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