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Test and Analysis of the Influence of Lake Water Obstacle on the Near-field Timing Signal of BPC Cover

Test and Analysis of the Influence of Lake Water Obstacle on the Near-field Timing Signal of BPC

Open Access
|Jan 2026

Figures & Tables

Fig. 1.

The waveform of the BPC signal.

Fig. 2.

Principle model of ground wave propagation.

Fig. 3.

Test method for field strength of BPC near-field timing signal.

Fig. 4.

Test method for time difference of BPC timing signal.

Fig. 5.

Test principle diagram for test point selection.

Fig. 6.

Comparison chart of the first group of lake water field strength values.

Fig. 7.

Comparison chart of lake water field strength values in the second group (After filtering).

Fig. 8.

Comparison chart of the first group of lake water time difference values.

Fig. 9.

Comparison chart of lake water time difference values in the second group.

Fig. 10.

Variation trend of signal field strength with distance.

Statistics of test data for the lake test within the near-field range (25 km)_

Time difference [μs]Test point 1 Pass lakeTest point 2 Not pass lake
Max value205.01191.97
Min value166.83155.99
Peak_to_peak38.1835.98
Mean value180.25172.21
Std6.866.38

Statistics of test data for the lake test within the ground wave range (138 km)_

Time difference [μs]Test point 1 Pass lakeTest point 2 Not pass lake
Max value614.69573.32
Min value494.51486.22
Peak_to_peak120.1887.10
Mean value543.17529.07
Std24.1114.97
Language: English
Page range: 24 - 32
Submitted on: Apr 30, 2025
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Accepted on: Nov 17, 2025
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Published on: Jan 23, 2026
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open

© 2026 Fan Zhao, Luxi Huang, Xin Wang, Zhen Qi, Xiaoqian Ren, Ping Feng, Yu Hua, published by Slovak Academy of Sciences, Institute of Measurement Science
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.