Carrier Phase-Jitter Extraction Method for VSB and SSB Data Transmission Systems

Theoretical analysis of the phase-jitter problem for a vestigial sideband (VSB) or single sideband (SSB) high-speed data transmission system is discussed in detail in this paper. Particular attention is paid to the effect of the phase shift introduced to the phase-jitter sideband components by various circuits in the carrier recovery system. Based on this theoretical analysis, a practical carrier recovery system, which will extract the phase jitter with minimum phase shift introduced to the phase-jitter sideband components, is proposed so that the overall effect of the phase jitter on the demodulated signal will be minimized.