A Combined Improved Algorithm to Estimating The delay of Sky waves In Loran c Receiver

Authors

1 Doctoral student, Malik Ashtar University of Technology and instructor, Shahid Sattari Aviation University of Tehran, Faculty of Electrical Engineering

2 Assistant Professor, Malik Ashtar University of Technology, Tehran, Faculty of Communication

Abstract

Use of the LORAN C system is well considered due to it's protection against gamming. the main parameter
of error in this system is sky wave interference. Frequency Estimation Algorithm for estimation sky
wave as the frequency estimation Algorithm (TOA) and time division of arrival are applied. Through the
frequency estimation algorithm the music algorithm has the performance in the presence of noise. For performance
improvement and increasing the accuracy an algorithm is proposed which is combination of TOA
and TDOA. this method has less error compared to TOA and TDOA. With respect to results, it is shown that
the proposed method has considerable improvement in the accuracy of estimation of sky waves the proposed
method improves 12.9 percent and 8.9 percent the system performance compared to TOA and TDOA
respectively.

Keywords


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Volume 2, Issue 4 - Serial Number 4
September 2020
Pages 55-63
  • Receive Date: 05 July 2014
  • Revise Date: 04 July 2023
  • Accept Date: 19 September 2018
  • Publish Date: 21 January 2015