GNSS World of China

Volume 43 Issue 5
Oct.  2018
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ZHANG Yu, YAN Tianfeng. Time Delay Estimation Algorithm Based on SCOT Double Weighted Second Correlation[J]. GNSS World of China, 2018, 43(5): 53-57. doi: 10.13442/j.gnss.1008-9268.2018.05.010
Citation: ZHANG Yu, YAN Tianfeng. Time Delay Estimation Algorithm Based on SCOT Double Weighted Second Correlation[J]. GNSS World of China, 2018, 43(5): 53-57. doi: 10.13442/j.gnss.1008-9268.2018.05.010
shu

Time Delay Estimation Algorithm Based on SCOT Double Weighted Second Correlation

doi: 10.13442/j.gnss.1008-9268.2018.05.010
  • 1.

    School of Electronic and Information Engineering, Lanzhou Jiaotong University,Lanzhou 730070, China

  • 2.

    High-precision Positioning Technology Compass Engineering Laboratory of Gansu Province, Lanzhou 730070, China

  • 3.

    Radio Monitoring and Technology Center of Positioning Industry of Gansu Province, Lanzhou 730070, China

  • Publish Date: 2018-10-15
    Abstract
  • On the basis of studying the second correlation method in time delay estimation, in order to further improve the availability of the second correlation method under lower signaltonoise ratio conditions, combined with the generalized weight function in generalized crosscorrelation, the two cross-correlations in the second correlation method are weighted with SCOT separately. The experimental simulation results show that compared with the second correlation method and the generalized second correlation method, the time-delay estimation algorithm based on SCOT double weighted second correlation still has a high accuracy of time delay estimation when the SNR is low.

     

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