Title :
A research on adaptive PCM clock recovering
Author :
Zhilu, Wu ; Zhendong, Yin ; Guanghui, Ren ; Shuiwang, Yang
Author_Institution :
Dept. Electron. & Commun. Eng., Harbin Inst. of Technol., China
Abstract :
A new kind of digital adaptive bit synchronizer used in remote sensing systems is proposed in this paper. Compared with the method once widely used, the analog/digital phase lock loop, the new adaptive PCM bit synchronizer can obtain bit synchronization signal on condition that the frequency of the input digital signal is unknown. The phase can be immediately relocked on the first bit-level jump if the signal is under the state of unlocking without the synchronization building time of the normal DPLL. The adaptive bit synchronizer can be widely used in almost every remote sensing system.
Keywords :
adaptive signal processing; clocks; pulse code modulation; remote sensing; synchronisation; adaptive PCM bit synchronizer; adaptive PCM clock recovery; analog/digital phase lock loop; bit synchronization signal; bit-level jump; digital adaptive bit synchronizer; input digital signal frequency; phase relocking; remote sensing system; signal unlocking state; synchronization building time; telemeter system; Circuits; Clocks; Frequency synchronization; Phase change materials; Phase detection; Phase locked loops; Signal processing; Space technology; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187722
