The operation of a hybrid Tracking (HT) phase-locked loop (PLL) in radio-frequency interference (RFI) is considered. Results from a perturbation analysis for the loop phase error in continuous-wave (CW) RFI are found to compare favorably with results obtained by digital computer simulation. These results, together with simulation results for wide-band (in comparison to the loop bandwidth) RFI, indicate that loop structures which track both on the signal carrier and modulation components are advantageous in RFI plus Gaussian noise backgrounds. Copyright © 1974 by The Institute of Electrical and Electronics Engineers, Inc.
R. E. Ziemer and D. R. Nelson, "Hybrid Carrier And Modulation Tracking Loop Performance In RFI," IEEE Transactions on Communications, vol. 22, no. 10, pp. 1607 - 1617, Institute of Electrical and Electronics Engineers, Jan 1974.
The definitive version is available at https://doi.org/10.1109/TCOM.1974.1092084
Electrical and Computer Engineering
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01 Jan 1974