전자공학회논문지A (Journal of the Korean Institute of Telematics and Electronics A)
- 제33A권3호
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- Pages.47-54
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- 1996
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- 1016-135X(pISSN)
수신 데이타의 버퍼 점유률을 이용한 적응클럭 복원
An adaptive clock recovery utilizing data buffer filling rate
초록
In this paper we propose a new timing recovery method by means of utilizing service data filling rate instead of timing information of transmitter. A proposed algorithm controls the phase locked loop in the opposite direction ot data filling rate of FIFO in receiver, and it is based on the fact that average of cell jitters is zero. The proposed method is simple compared with timing information method of transmitter. It can be utilized for timing recovery in synchronous digital hierarchy as well as in plesiochronous digial hierarchy without common reference clocks in end-to-end erminals. We implement the interactive video communication system and test the proposed algorithm. As a result, we hav econfirmed that it yields good perfomrnces in terms of jitters characteristics and hardware complexity.
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