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Abstract
The secretiveness of sonar operation can be achieved by using continuous frequency-modulated sounding signalswith reduced power and significantly prolonged repeat time. The application of matched filtration in the sonarreceiver provides optimal conditions for detection against the background of white noise and reverberation, and avery good resolution of distance measurements of motionless targets. The article shows that target movementcauses large range measurement errors when linear and hyperbolic frequency modulations are used. Theformulas for the calculation of these errors are given. It is shown that for signals with linear frequencymodulation the range resolution and detection conditions deteriorate. The use of hyperbolic frequencymodulation largely eliminates these adverse effects.
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/v10178-012-0027-6
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Metrology and Measurement Systems
no. XIX,
pages 321 - 332,
ISSN: 0860-8229 - Language:
- English
- Publication year:
- 2012
- Bibliographic description:
- Marszal J., Salamon R.: Distance measurement errors in silent FM-CW sonar with matched filtering // Metrology and Measurement Systems. -Vol. XIX, nr. No. 2 (2012), s.321-332
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/v10178-012-0027-6
- Verified by:
- Gdańsk University of Technology
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