Delay Estimation Using Adjustable Fractional Delay All-Pass Filters

@article{Olsson2006DelayEU,
  title={Delay Estimation Using Adjustable Fractional Delay All-Pass Filters},
  author={Mattias Olsson and H{\aa}kan Johansson and Per Lowenborg},
  journal={Proceedings of the 7th Nordic Signal Processing Symposium - NORSIG 2006},
  year={2006},
  pages={346-349}
}
This paper presents a novel time-delay estimator utilizing an fractional-delay all-pass filter and Newton's method. Solutions using a direct correlator and an average squared difference function are compared. Furthermore, an analysis of the effects of the batch length dependence is presented 

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