Abstract

AbstractTracking performance of DLL (Delay‐Lock Loop) for PN sequences with bit errors is discussed and the relationship between the average bit error rate and the normalized r.m.s. tracking error of one‐Δ DLL, is analyzed using the concept of “error sequence.” As a result, it is clarified that the tracking error is nearly proportional to the average bit error rate pe when the loop band width is narrow and is nearly proportional to Pe when the loop band width is wide. The performance of BPSKC (Binary Phase Shift Keyed Correlation) system is analyzed and compared with conventional noise residual systems. It is demonstrated that the BPSKC system is disadvantageous for the input SNR below a certain level but it has some advantage over other systems for the input SNR beyond this level.

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