Multi-beam Sonar Signal Simulation and Field Programmable Gate Array Implementation

The multi-beam bathymetric sonar system is one of the top pieces of equipment for ocean exploration. The action distance of multi-beam bathymetric sonar depends on the pulse width of the signal, and the distance resolution depends on the bandwidth of the transmitted signal. In this paper, a chirp si...

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Bibliographic Details
Published in:Journal of physics. Conference series Vol. 2419; no. 1; pp. 12033 - 12039
Main Authors: Luo, Yu, Li, Shiwen, Shi, Jian, Cheng, Mengdi
Format: Journal Article
Language:English
Published: Bristol IOP Publishing 01.01.2023
Subjects:
Bandwidths
Chirp signals
Field programmable gate arrays
Hardware description languages
Lookup tables
Physics
Pulse duration
Shallow water
Signal generation
Sonar
ISSN:1742-6588, 1742-6596
Online Access:Get full text
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Summary:The multi-beam bathymetric sonar system is one of the top pieces of equipment for ocean exploration. The action distance of multi-beam bathymetric sonar depends on the pulse width of the signal, and the distance resolution depends on the bandwidth of the transmitted signal. In this paper, a chirp signal generation method for shallow water multibeam sonar based on FPGA is presented to improve the performance of multibeam bathymetric sonar. A chirp signal is generated using a hardware description language with a bandwidth of B = 50 kHz and a pulse width of T = 1 ms. Compared with the traditional look-up table method, this method could release plenty of hardware resources.
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ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2419/1/012033