Carrier recovery performance in PSK systems using transmission pulses with a square root raised cosine spectrum

A general expression is presented for the M/sup th/ power carrier tracking loop loss. This expression is applied to assess the performance of Costas-loop type schemes in binary PSK (phase shift keying) and quadrature PSK systems, in which transmission pulses have a square-root raised-cosine spectrum and matched filters are used in the receiver. Numerical results illustrate performance sensitivity to variations of the pulse roll-off factor.<
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