• DocumentCode
    3075618
  • Title

    Approximated CRB for Multipath Time Delay Estimator Problem in Low SNR Condition

  • Author

    Bhardwaj, Tarkeshwar Prasad ; Nath, Ravinder

  • Author_Institution
    Dept. of Electr. Eng., Nat. Inst. of Technol., Hamirpur
  • fYear
    2009
  • fDate
    6-7 March 2009
  • Firstpage
    1136
  • Lastpage
    1140
  • Abstract
    In this paper, we present the approximated CRB for time delay estimator in multipath channel operating at low SNR ranges. In general, evaluation of true CRB is difficult to obtain. Instead, here we derive a simple closed form expression, which is an approximation of true CRB, at low SNR ranges. The computation of this approximated CRB involves less complexity and is reasonably accurate.
  • Keywords
    approximation theory; delays; multipath channels; Cramer-Rao bound; Fisher information matrix; approximated CRB; multipath channel; multipath time delay estimator problem; power spectral density; Attenuation; Delay effects; Delay estimation; Fading; Multipath channels; Power system modeling; Sensor systems and applications; Signal generators; Wireless communication; Wireless sensor networks; Cramer-Rao Bound (CRB); Fisher Information Matrix; Multipath; Power Spectral Density (PSD);
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Advance Computing Conference, 2009. IACC 2009. IEEE International
  • Conference_Location
    Patiala
  • Print_ISBN
    978-1-4244-2927-1
  • Electronic_ISBN
    978-1-4244-2928-8
  • Type

    conf

  • DOI
    10.1109/IADCC.2009.4809174
  • Filename
    4809174
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3075618