On the effect of phase error in digital communication systems
N. CHATTERJEE, Jayanta Kumar Das, D. Dutta Majumder · International Journal of Electronics · 1979
An analysis is presented briefly showing the effect of carrier phase error due to jitter on the error rate in digital communication systems. The information hearing signal is taken to be impaired by peak-limited additive interference and multiplicative noise, such as carrier phase jitter. Probability of error and distance function due to slowly varying phase jitter (φ<π/2) and computer simulation results on the system performance for different signal-to-noise ratios corresponding to bit rates 10.8. 14.4, 18.0 and 21.6 Hi kbits/s and various channel bandwidths 1.2, 2.4, 3.6 and 4.8 k Hz are presented along with the possibility of minimization of such effects using a decision feedback equalizer. The results show a significant improvement, of power l.1 dB per degree phase error which can be achieved at an error rate of 10-3 over the range of signal-to-noise ratio values of 32–40 dB.