吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (2): 610-617.doi: 10.13229/j.cnki.jdxbgxb20161369

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Improved Tong detection algorithm with double thresholds

ZHANG Chao-yi1, 2, LI Jin-hai1, YAN Yue-peng1   

  1. 1.Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China;
    2.University of Chinese Academy, Beijing 100049, China
  • Received:2016-12-18 Online:2018-03-01 Published:2018-03-01

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Abstract: Long due time in traditional Tong detection algorithm results in slow speed of detection and confirmation. In order to solve this problem, an improved Tong detection algorithm with double thresholds is proposed. By comparing the detection statistic with two-stage thresholds, the detection condition of the algorithm can be met more quickly after a few logical operations on the counter, which greatly reduces the detection time. The false alarm probability, the detection probability and the average dwell times of the proposed algorithm are analyzed and verified. Simulation results indicate that the proposed algorithm can maintain the detection performance and reduce the average dwell rimes effectively if a second threshold is set suitably.

Key words: communication technology, global navigation satellite system, Tong detection, double thresholds, average dwell times

CLC Number: 

  • TN911.23
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