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Block 4 receiver tracking loop performance in the presence of a CW RFIA model that allows one to predict the tracking performance of the Block 4 receiver in the presence of a continuous wave radio frequency interference is discussed. Experimental and analytical results are provided for a typical Deep Space Network operational mode. Simulation and experimental results show good agreement with theoretical prediction for the static phase error and out-of-lock values. Predicted phase jitter is consistently lower than the experimental and simulated results by a factor of one-half for small interference to signal ratio (ISR) when the offset frequency is small. For large ISR, good agreement is observed. The analytical model assumes a noiseless condition, which is valid only when the loop is operated at strong signal levels. Experimental data indicate, however, that even at the minimum operating signal level of 10-dB carrier margin, reasonably good prediction can still be obtained. A curve of protection criteria that extends the current recommendation is also presented.
Document ID
Document Type
Reprint (Version printed in journal)
Sue, M. K. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 11, 2013
Publication Date
December 15, 1980
Publication Information
Publication: The Telecommun. and Data Acquisition
Subject Category
Distribution Limits
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19810004699Analytic PrimaryThe telecommunications and data acquisition