Earth-based navigation capabilities for outer planet missions

Hildebrand, C. E.; Ondrasik, V. J.; Ransford, G. A.

doi:10.2514/6.1972-925

Astrodynamics Conference 1972

DOI: 10.2514/6.1972-925

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Earth-based navigation capabilities for outer planet missions

C. E. Hildebrand

V. J. Ondrasik

G. A. Ransford

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1974

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An Analysis and Demonstration of Clock Synchronization by VLBI

Hurd

1974

IEEE Trans. Instrum. Meas.

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A prototype of a scmireal-time system for synchronizing the DSN station clocks by radio interferometry was successfully demonstrated on August 30, 1972. The system utilized an approximate maximurn likelihood estimation procedure for processing the data, thereby achieving essentially optimum time synchronization estimates for a given amount of data, or equivalently, minimizing the amount of data required for reliable estimation. Synchronization accuracies as good as 100 nsec rms were achieved bctween DSS 11 and DSS 12, both at Goldstone, California. The accuracy can be improved by increasing the system bandwidth until the fundamental limitations due t o position uncertainties of baseline and source and atmospheric effects are reached. These limitations are under ten nsec for transcontinental baselines.

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An Analysis and Demonstration of Clock Synchronization by VLBI

Hurd

1974

IEEE Trans. Instrum. Meas.

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Earth-based navigation capabilities for outer planet missions

Cited by 1 publication

References 5 publications

An Analysis and Demonstration of Clock Synchronization by VLBI

An Analysis and Demonstration of Clock Synchronization by VLBI

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