A method for accurately finding the detecting acoustic signal of the active sonar

Bao Li; Yuankun Peng

doi:10.1117/12.3029220

6 May 2024 A method for accurately finding the detecting acoustic signal of the active sonar

Bao Li, Yuankun Peng

Proceedings Volume 13107, Fourth International Conference on Sensors and Information Technology (ICSI 2024); 1310720 (2024) https://doi.org/10.1117/12.3029220
Event: Fourth International Conference on Sensors and Information Technology (ICSI 2024), 2024, Xiamen, China

Abstract

In the marine environment, the active sonar sends out the specific detection acoustic signal that is the input signal^[1]. The detection acoustic signal changes over time and space and has a propagation loss during the propagation process. This propagation process can be thought of as a system. It is very important to find the output signal of the system. Since the energy of the signal is higher than the background noise, the conventional method is to find the maximum value according to the signal energy, but this method has certain shortcomings. This paper uses the method of Hilbert transform^[2,3,4,5,6] to get the variable envelope. Then we find the rising edge and falling edge of the signal in the envelope. At last we find the starting point of the signal by the pulse width of the input signal.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Bao Li and Yuankun Peng "A method for accurately finding the detecting acoustic signal of the active sonar", Proc. SPIE 13107, Fourth International Conference on Sensors and Information Technology (ICSI 2024), 1310720 (6 May 2024); https://doi.org/10.1117/12.3029220

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