Noise effect on parameters of quiet sonar with code modulation
2023
scientific article
english
- silent sonar
- maximum length sequence
- signal-to-noise ratio
- frequency modulation
EN Earlier publications of the paper authors have shown that the use of code keying mixed with the CW FM sound signal allows the significant reduction in the distance measurement error, compared to classic silent CW FM sonar. In addition to the code modulation parameters, the magnitude of this error is influenced by the received input acoustic noise. The article shows the dependence of the input signal-to-noise ratio and the sound signal parameters on the target distance measurement error and the detection conditions, such as the output signal-to-noise ratio and the side lobe level. The results of the analysis were compared to the same parameters of the CW FM silent sonar without code modulation.
2023109-1 - 2023109-10
article number: 2023109
CC BY (attribution alone)
open journal
final published version
public
70