Tytuł artykułu
Identyfikatory
Warianty tytułu
Mutual interference reduction in pulse sonars with frequency modulation
Konferencja
XLVIII Otwarte Seminarium z Akustyki, Wrocław-Polanica Zdrój, 11-14 września 2001 r.
Języki publikacji
Abstrakty
Some of important disturbances in sonar echo are signals emitted by the other sonars. Sonar receives these signals by the direct trace or as echoes from the targets. The mutual interference level depends on many parameters, like: the sounding frequency bands aliasing, the distance between sonars and the mutual localization of sonar transducers. The mutual interference of sonars is particularly sharp when the same type of sonars (with the same frequency bands) is used in the same area The analysis of such situations is presented in the paper. Some solutions of mutual interference reduction for pulse sonars with linear frequency modulation and match filtering with FFT technique, designed in Technical University of Gdansk, are given. The results of computer simulations are presented. It is possible to obtain the 40 dB reduction of mutual interference.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
281--284
Opis fizyczny
bibliogr. 2 poz.
Twórcy
autor
autor
autor
autor
autor
- Politechnika Gdańska, Wydział ETI, Katedra Akustyki, ul. Narutowicza 11/12, 80-952 Gdańsk
Bibliografia
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW1-0016-0131