6533b827fe1ef96bd1286912
RESEARCH PRODUCT
Non-linear analysis of a modified QPSK Costas loop
N. V. KuznetsovM. V. BlagovE. V. KudryashovaJ. LadvanszkyM. V. YuldashevR. V. Yuldashevsubject
non-linear analysisPSK demodulatorCostas loopPLLlock-in rangenumerical simulationelektroniset piiritmatemaattiset mallitComputer Science::Information Theorydescription
A Costas loop is one of the classical phase-locked loop based circuits, which demodulates data and recovers carrier from the input signal. The Costas loop is essentially a nonlinear control system and its nonlinear analysis is a challenging task. In this article for a modified QPSK Costas loop we analyze the hold-in, pull-in and lock-in ranges. New procedure for estimation of the lock-in range is considered and compared with previously known approach. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-01-01 |