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Adaptive ADPLL architecture for MPEG system clock related measurements in variable rate environment
Journal article   Peer reviewed

Adaptive ADPLL architecture for MPEG system clock related measurements in variable rate environment

H. Rabah, C. Mannino, Y. Berviller, C. Tanougast and S. Weber
Sensors and actuators. A. Physical, v 147(2), pp 633-640
03 Oct 2008

Abstract

Engineering Engineering, Electrical & Electronic Instruments & Instrumentation Science & Technology Technology
Measurements such as jitter, frequency offset and drift are very important in the quality of service evaluation in digital video broadcast, especially under varying rate environment. This paper presents anal I digital phase locked loop (ADPLL) architecture for either VLSI or low cost FPGA implementation. The operation of proposed ADPLL is based on a frequency synthesizer for a very narrow band frequency (+/- 800 Hz), small frequency step and high central frequency (27 MHz). The proposed solution is designed for the real time measurements, feature a very low intrinsic jitter, and adaptive rate variation. The system description and adaptation method are presented with corresponding hardware implementation. Experimental results in term of jitter analysis and adaptation behavior are detailed and discussed. (c) 2008 Elsevier B.V. All rights reserved.

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Engineering, Electrical & Electronic
Instruments & Instrumentation
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