Distance measurement errors in silent FM-CW sonar with matched filtering

• Autorzy: Marszal J. , Salamon R.
• Języki publikacji: PL

Abstrakty

EN

The secretiveness of sonar operation can be achieved by using continuous frequency-modulated sounding signals with reduced power and significantly prolonged repeat time. The application of matched filtration in the sonar receiver provides optimal conditions for detection against the background of white noise and reverberation, and a very good resolution of distance measurements of motionless targets. The article shows that target movement causes large range measurement errors when linear and hyperbolic frequency modulations are used. The formulas for the calculation of these errors are given. It is shown that for signals with linear frequency modulation the range resolution and detection conditions deteriorate. The use of hyperbolic frequency modulation largely eliminates these adverse effects.

Słowa kluczowe

EN

silent sonar; frequency modulation; continuous wave; matched filtering; distance measurement; errors; Doppler effect

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2012
• Tom: Vol. 19, nr 2
• Strony: 321--332
• Opis fizyczny: Bibliogr. 17 poz., wykr., wzory

Twórcy

autor

Marszal J.

autor

Salamon R.

• Gdansk University of Technology, Faculty of Electronics, Telecommunication and Informatics, Department of Maritime Electronic Systems, G. Narutowicza 11/12, 80-233 Gdansk, Poland,

Bibliografia

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