Laser & Optoelectronics Progress, Volume. 58, Issue 23, 2306001(2021)
Research and Application of Generalized Cross Correlation in Chaotic Spread Spectrum Time Delay Estimation
Figures & Tables(10)
Fig. 1. Simulink simulation model of chaotic spread spectrum time delay estimation
Fig. 4. Normalized results of ROTH weighting function in chaotic spread spectrum time delay estimation (positioning and ranging)
Fig. 5. Normalized results of ROTH weighting function in chaotic spread spectrum time delay estimation (cable short circuit fault location)
Fig. 6. Normalized results of PATH weighting function in chaotic spread spectrum time delay estimation (positioning and ranging)
Fig. 7. Normalized results of PHAT weighting function in chaotic spread spectrum time delay estimation (cable short circuit fault location)
Fig. 8. Normalized results of SCOT weighting function in chaotic spread spectrum time delay estimation (positioning and ranging)
Fig. 9. Normalized results of SCOT weighting function in chaotic spread spectrum time delay estimation (cable short circuit fault location)
Table 1. Comparison of calculation results of each weighting function with basic cross-correlation calculation results
View tableTable 1. Comparison of calculation results of each weighting function with basic cross-correlation calculation results
Fault type Operation type Ratio of main peak to side lobe /dB Ratio of maximum misjudgment point peak to fault point peak Positioning and ranging Basic cross correlation -3.4925 0.9605 ROTH weighting function -2.6731 0.5840 PHAT weighting function -3.8292 0.7485 SCOT weighting function -4.7513 0.3180 Cable short circuit fault location Basic cross correlation -3.4710 0.2505 ROTH weighting function -2.8580 0.0984 PHAT weighting function -5.3877 0.2472 SCOT weighting function -4.4016 0.0252
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Yuhua Xing, Qi Zheng. Research and Application of Generalized Cross Correlation in Chaotic Spread Spectrum Time Delay Estimation[J]. Laser & Optoelectronics Progress, 2021, 58(23): 2306001
Paper Information
Category: Fiber Optics and Optical Communications
Received: Jan. 13, 2021
Accepted: Mar. 17, 2021
Published Online: Nov. 18, 2021
The Author Email: Zheng Qi (787874200@qq.com)
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