Estimation of parameter variation of wideband signals and their fields in media with attenuation


  • Iuliia V. Baksheeva Saint Petersburg State University of Aerospace Instrumentation, Russian Federation



pulse response, wideband signal, ultrawideband signal, UWB, frequency-dependent attenuation, spatial selectivity, near-field region, Fresnel zone, field distribution, resolution, ultrasonic echolocation


Wideband signals and their fields in media with frequency-dependent attenuation have been considered using an example of the analysis of propagation of ultrasonic signals in biological media. An analytical expression for the spatial frequency response of the layer of biological tissue with frequency-dependent attenuation for diagnostically meaningful frequency range was obtained by using a linear approximation of the problem under consideration. Quantitative estimates of the impact of a layer of biological tissue with attenuation on a radio pulse with Gaussian envelope were obtained. The presence of frequency-dependent attenuation in medium was shown to result in variation of spatial selectivity of antenna during its operation with wideband signals. The estimates of variation of spatial selectivity parameters are presented in case of using the radio pulses with Gaussian envelope.


VAINSHTEIN, L.A. Propagation of pulses. Sov. Phys. Usp., 1976, v.19, p.189, DOI:

BAKSHEEVA, I.V. Estimation of deterioration of potential range resolution of ultrasonic diagnostic medical systems in conditions of real biological media. Proc. of 1st Int. Conf. on UWB Signals and Ultra-Short Pulses in Radiolocation, Communication and Acoustics, 2005, Suzdal, Russia, 2005.

HILL, C.R.; BAMBER, J.C.; TER HAAR, G.R. (eds.), Physical Principles of Medical Ultrasonics, 2nd ed. Wiley, 2002.

HAMPTON, L. Physics of Sound in Marine Sediments. Springer, 1974, DOI:

ARSEN’EVA, E.M.; SOBOLEVSKAYA, M.K.; CHUBINSKII, N.P. Amplitude and phase dispersion during the propagation of ultrawideband signals in media and lines. Proc. of 2st Int. Conf. on UWB Signals and Ultra-Short Pulses in Radiolocation, Communication and Acoustics, 2006, Murom, Russia, 2006, p.205-209.

BREKHOVSKIKH, L.M.; GODIN, O.A. Acoustics of Layered Media. Moscow: Nauka, 1989 [in Russian].

BAKSHEEVA, I.V. “Investigation of time-spatial structure of non-monochromatic acoustic medical sensors using pulse responses. Vestnik Molodykh Uchenykh. Ser. Tekhnicheskie Nauki, 2004, n.8, p.45-52.

BAKSHEEVA, I.V.; GOLUBKOV, A.P. Analysis method of wideband acoustic signals and fields of ultrasonic systems of diagnostics of biological objects. Proc. of XVII Int. Sci.-Tech. Conf. on Radiolocation, Navigation, Communication, Voronezh, Russia, 2013, v.3, p.2428-2437.

V. A. Krasilnikov, V. V. Krylov, Introduction into Physical Acoustics (Nauka, Moscow, 1984) [in Russian].

SHUTILOV, V.A. Fundamentals of Physics of Ultrasound. Leningrad: Izdat. LGU, 1980 [in Russian].

KANEVSKII, I.N. Focusing of Sound and Ultrasonic Waves. Moscow: Nauka, 1977 [in Russian].

KAK, R. Boundaries of acoustic attenuation estimates in small areas of soft biological tissues obtained during the analysis of reflected ultrasonic waves. TIIER, 1985, v.73, n.7, p.6-16.





Research Articles