A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
On Spurious Phase Modulation Caused by Second-Harmonic Terms for Digital Phase-Locked Loop
The second-harmonic term in the operation of phase detector for second-order digital phase-locked loop is studied. It unavoidably produces undesirable spurious phase modulation, which asymptotically oscillates around the would-be synchronous state, and increases the phase error, even may forbid the synchronization process. The analysis of spurious phase modulation and fast convergence problem shows, the transfer functions of loops are required to be low pass forms in order to suppress the second-harmonic term. In the presence of the second-harmonic term, the second-order digital phase-locked loop with zero spectral radius cannot achieve fast convergence, neither is stable. The results are confirmed by numerical simulations.
On Spurious Phase Modulation Caused by Second-Harmonic Terms for Digital Phase-Locked Loop
The second-harmonic term in the operation of phase detector for second-order digital phase-locked loop is studied. It unavoidably produces undesirable spurious phase modulation, which asymptotically oscillates around the would-be synchronous state, and increases the phase error, even may forbid the synchronization process. The analysis of spurious phase modulation and fast convergence problem shows, the transfer functions of loops are required to be low pass forms in order to suppress the second-harmonic term. In the presence of the second-harmonic term, the second-order digital phase-locked loop with zero spectral radius cannot achieve fast convergence, neither is stable. The results are confirmed by numerical simulations.
On Spurious Phase Modulation Caused by Second-Harmonic Terms for Digital Phase-Locked Loop
Dong, Y.l. (author) / He, G.y. (author)
2006-06-01
3582322 byte
Conference paper
Electronic Resource
English
Advanced Phase-Locked-Loop Oscillators
| British Library Online Contents | 2001
| British Library Online Contents | 1999
Design and Implementation of the RF Front-End All-Digital Phase-Locked Loop in the UHF RFID Reader
| British Library Online Contents | 2011
Efficient second harmonic generation in γ-TeO2 phase
| British Library Online Contents | 2006
| Wiley | 2025