Influence of chirp signal parameters on windowed matching filtration resolution

• Autorzy: Pogribny W. , Leszczyński T.
• Języki publikacji: EN

Abstrakty

EN

In this work we studied the proposed effective methods of increasing of a resolution of a matched filtration in time domain of the short broadband signals with the use of linear modulation of frequency (the so-called chirp signals) which product BT does not exceed 50 and initial frequency is not zero. The choice of matched filter pulse response parameters as smoothing window and matched to it an initial phase and a sampling rate as well as the influence of non linear operations on the matching filtration results have been investigated in order to essentially narrow the output signal main lobe as well as increase the chirp compression. The best results of the recognition resolution and compression improvement occur when at the same time there are used the non linear operations on the convolutions and the pulse response parameters are matched to the chosen window.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2007
• Tom: Vol. 10
• Strony: 157--162
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Pogribny W.

autor

Leszczyński T.

• Institute of Telecommunications of UTP 7 Kaliskiego Ave., PL85-796 Bydgoszcz, POLAND,

Bibliografia

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• [2] R. Nitzberg, Radar Signal Processing and Adaptive Systems, Artech House, Boston, London, 1999.
• [3] B. Lewis, Aspects of Radar Signal Processing, Artech House, Boston, London, 1986.
• [4] S.G. Schock, L.R. LeBlanc, Chirp sonar: new technology for sub bottom profiling, Sea Technol., 31, p.35-43, 1990.
• [5] W. Pogribny, Recurrent Algorithms Filtration of 1-D and 2-D Signals in Combined Formats, Proc. of SPIE, vol.3809, pp555-563, 1999.
• [6] W. Pogribny, I. Rozhankivsky, A. Milewski, V. Lozynsky, Studying the Exactitude of Digital Matching Filtration of Wide Pass Location Signals, Hydroacustics, vol. 4, Gdynia, Poland, pp 209-212, 2001.