Complex signals based on short chirp signals and phase coding

• Autorzy: Marciniak T.
• Języki publikacji: EN

Abstrakty

EN

The main problem associated with detecting and locating of objects by means of radiolocation and hydrolocation systems is the appropriate selection of transmitting signals. These signals need to be difficult to detect by the watched object and need to be resistant to disturbances. The most often used ones are signals with linear frequency modulation (chirp signals) and signals with phase coding. New possibilities of the realization of complex signals appeared along with development of the digital technique. The usage of signal composite from short signals with linear frequency modulation with use of phase coding was analysed in this paper. Short noise-like sequences (Barker’s codes) were used for coding the initial phase of chirp signals. This article presents results of research obtained for a signal of this type, at its identification by means of matching filtration. These results were compared with results obtained for single signal with linear frequency modulation with the same duration and bandwidth.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2005
• Tom: Vol. 8
• Strony: 117--124
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Marciniak T.

• Institute of Telecommunications of UTA, Kaliskiego 7, 85-791 Bydgoszcz, Poland

Bibliografia

• 1. R. E. Ziemer, W. H. Tranter, Wiley&Sons,103-124, United States of America 2002
• 2. F. Le Chevalier, Principles of Radar and Sonar Signal Processing, Artech House, 54-62, London 2002
• 3. Biran A., Low-Sidelobe SAW Barker 13 Correlator, IEEE Ultrasonics Symposiu 1985, s.149-152
• 4. Jakubiak A., Metody i algorytmy symulacji radiolokacyjnych zakłóceń biernych, Kwartalnik Elektroniki i Telekomunikacji, tom 46, zeszyt 2,Warszawa 2000, s.237-252
• 5. Jakubiak A., Radiolokacyjne zakłócenia bierne – ich powstawanie i właściwości, Przegląd Telekomunikacyjny nr.4, 2001, s.258-264