Fractional lower-order statistics-based ambiguity functions for differential delay Doppler estimation


Tsihrintzis G., TÜRELİ M. S. U. , Nikias C.

IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION, vol.143, no.6, pp.358-365, 1996 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 143 Issue: 6
  • Publication Date: 1996
  • Doi Number: 10.1049/ip-rsn:19960607
  • Title of Journal : IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION
  • Page Numbers: pp.358-365

Abstract

The problem of estimation of differential-delay Doppler in an environment in which the signal of interest is embedded in highly impulsive interference is addressed. A signal model is formulated with wide applications in radar, sonar, communications and biomedicine and the construction of a new ambiguity function is proposed which is based on the recently-developed concepts of fractional, lower-order statistics and is, therefore, resistant to the presence of severe outliers in the observed time series. The performance of the proposed differential-delay Doppler estimators is theoretically analysed, verified via Monte Carlo simulation, and compared to the performance of traditional, second-order statistics-based estimators.