A maximum likelihood estimate for frequency carrier, phase leakage and amplitude of digital PSK modulated signals is presented. The three optimum parameters obtained are analyzed and compared with suboptimum realizations in the synchronization process. In order to achieve an efficient system a final structure is closed where each method is selected in order to get not only appropriated performance as well as a relatively low computational load.
Cabrera, M., Lagunas, M. Simultaneous parameters estimation of digital modulated signals. A: European Signal Processing Conference. "EUSIPCO 1990: Signal processing V theories and applications: proceedings of EUSIPCO-90: Fith European Signal Processing Conference: Barcelona, Spain: September 18-21, 1990". Barcelona: Elsevier, 1990, p. 1835-1838.