Theory and performance of a minimum-shift-keying (MSK) system with noisy references

The performance of a minimum-shift-keying (MSK) system has been studied in which the carrier and clock references are noisy and derived from the received waveform by means of narrowband tracking loops (phaselock loops). The results are presented in terms of the probability of error. It has been found that the performance of this system is greatly affected by the characteristics of the synchronization structures. These effects are shown through a number of performance curves. It has also been found that the MSK system is less sensitive to demodulation phase errors than the antipodal PSK system.