Accession Number:



Carrier Tracking of Phase Modulated Signals with a Phase-Lock Loop

Descriptive Note:

[Technical Report, Technical Note]

Corporate Author:

DEVCOM Army Research Laboratory

Personal Author(s):

Report Date:


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Oscillator discrepancies and Doppler shifts can cause a mismatch between transmitter and receiver carrier frequencies in wireless communications. A phase-lock loop is typically employed to recover the carrier and remove any frequency mismatch. This technical note demonstrates the use of a Costas loop for phase recovery of a quadrature phase-shift keying signal, paying special attention to characterization of the frequency offset. Full simulation source code is provided.

Subject Categories:

  • Radiofrequency Wave Propagation
  • Radio Communications

Distribution Statement:

[A, Approved For Public Release]