Adaptive second-order TDTL with optimized performance

O. Al Kharji Al-Ali, N. A. Anani, M. A. Al-Qutayri, S. R. Al-Araji, P. V.S. Ponnapalli

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper the architecture of a second-order time delay digital tanlock loop (TDTL) with real-time adaptive calculation of the loop filter coefficients is proposed. An adaptive digital filter based on the recursive least squares (RLS) algorithm is used to generate the coefficients of the TDTL loop filter. This allows the filter coefficients to be continuously updated in real- time so as to optimise the noise immunity of the TDTL in a highly dynamic environment. The performance of the proposed system was evaluated and compared with the original TDTL system using both additive white Gaussian noise (AWGN) and Doppler shifts. The results indicate that the noise performance of the proposed system outperforms that of the original TDTL.

Original languageBritish English
Title of host publicationSensor Signal Processing for Defence, SSPD 2011
Edition4
DOIs
StatePublished - 2011
EventSensor Signal Processing for Defence, SSPD 2011 - London, United Kingdom
Duration: 27 Sep 201129 Sep 2011

Publication series

NameIET Seminar Digest
Number4
Volume2011

Conference

ConferenceSensor Signal Processing for Defence, SSPD 2011
Country/TerritoryUnited Kingdom
CityLondon
Period27/09/1129/09/11

Keywords

  • adaptive filter
  • loop filter coefficients
  • recursive leased squares algorithm
  • TDTL

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