Abstract
We describe the formation of a radio signal designed for acoustooptical processing based on the radar signal analyzed which is characterized by a spectrum, a heterodyne signal with a spectrum of known structure, and a mixer. The signal formed fits the working frequency of the acoustooptical cell. In the cell, the signal produces a traveling acoustic wave due to propagating inhomogeneities of the dielectric constant or refractive index. Within the framework of physical optics, we consider how the acoustooptical cell used for processing the signal works in the regime of the Raman–Nath diffraction. The cell is illuminated by quasimonochromatic radiation of known arbitrary spatial and spectrum structures. One works in the first and higher diffraction orders. Using an original method proposed earlier, we analyze the functioning of the acoustooptical cell in the Bragg diffraction regime at small radiation transformation coefficients. The description is done for a probing signal of known spatial and spectrum structures. The method of acoustooptical analysis of the spectrum structure of a radio signal or radar signal is considered under the decreased influence of the spectra of the probing optical radiation and heterodyne signal. The effect of the spectrum structure of the probing radiation used when processing the radio signal which propagates within the acoustooptical cell is studied in complete analogy with taking into account the exciting radiation spectrum in spectroscopy. For signals with a low level of noise, we use the method based on the Fourier transformation of the intensity distribution registered and on that of the intensity distribution of the initial probing radiation spectrum. Effects of the width and spectrum structure of the heterodyne can also be taken into account similar to the method of excluding the spread function used in investigating spectrograms. The processing uses Fourier transforms of the registered spectrum intensity distribution and of the known spectrum intensity distribution of the heterodyne signal.
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References
L. E. Astanin and A. A. Kostylev, Principles of Wide Band Radar Measurements [in Russian], Radio i Svyaz', Moscow (1989).
Yu. G. Sosulin, Theoretical Principles of Radio Location and Radio Navigation [in Russian], Radio i Svyaz', Moscow (1992).
B. V. Bunkin and V. A. Kashin, Radiotekhnika, 4–5, 128 (1995).
V. G. Radzievsky and P. A. Trifonov, Radiotekhnika, 6, 69 (1999).
V. G. Radzievsky and P. A. Trifonov, Radiotekhnika, 6, 39 (2000).
V. A. Zubov and T. T. Sultanov, Proc. SPIE, 213, 50 (1980).
A. V. Kraisky, T. T. Sultanov, and V. A. Zubov, “Processing of Optical Information Using the Two-Channel Interferometer,” in: Holographic processing of Information with Use of Nonstationary Fields [in Russian], Proceedings of the P. N. Lebedev Physical Institute, Nauka, Moscow (1982), Vol. 131, p. 3.
M. V. Dyakonov, T. F. Faizullov, V. A. Zubov, et al., Kvantovaja Élektron., 23, 667 (1996).
M. V. D'yakonov, T. F. Faizullov, T. T. Sultanov, et al., J. Russ. Laser Res., 18, 125 (1997).
S. V. Kulakov, Acoustooptical Devices for Spectral and Correlation Analysis of Signals [in Russian], Nauka, Leningrad (1978).
G. E. Korbukov and S. V. Kulakov (eds.), Acoustooptical Methods of Processing Information [in Russian], Nauka, Leningrad (1978).
A. P. Beloshicky, V. M. Komarov, B. P. Krekoten', et al., Zarubezhnaya Radioélectronika, 3, 51 (1981).
S. V. Kulakov (ed.), Acoustoelectronical and Acoustooptical Methods of Radio Signal Processing [in Russian], Nauka, Leningrad (1983).
W. T. Rhodes and P. S. Guilfoyle, Proc. IEEE, 72, 820 (1984).
S. V. Kulakov (ed.), Acoustooptical Devices in Radioelectronic Systems [in Russian], Nauka, Leningrad (1988).
O. B. Gusev, S. V. Kulakov, B. N. Razzhivin, et al., Real Time Optical Processing of Signals [in Russian], Radio i Svyaz', Moscow (1989).
J. N. Lee and A. VanderLugt, Proc. IEEE, 77, 1528 (1989).
E. T. Aksenov, M. G. Vysotsky, V. P. Karasik, et al., Avtometriya, 1, 78 (2000).
N. N. Evtikhiev, O. A. Evtikhieva, I. N. Kompanets, et al., Information Optics [in Russian], Moscow Power Engineering Institute, Moscow (2000).
M. Born and E. Wolf, Principles of Optics, Cambridge University Press, Cambridge (1999).
C. V. Raman and N. S. N. Nath, The Diffraction of Light by High Frequency Sound Waves, Proc. Indian Acad. Sci., 2A (1935), 3A (1936).
H. G. Cohen and E. I. Gordon, Bell. Syst. Tech. J., 44, 693 (1965).
H. Kogelnik, Bell. Syst. Tech. J., 49, 2909 (1969).
A. Papoulis, Systems and Transforms with Applications in Optics, McGraw-Hill, New York (1968).
L. D. Landau and E. M. Lifshits, Field Theory [in Russian], Nauka, Moscow (1988).
I. S. Gradshtein and I. M. Ryzhik, Tables of Integrals, Sums, Series, and Products [in Russian], Nauka, Moscow (1971).
A. N. Tikhonov and A. A. Samarsky, Equations of Mathematical Physics [in Russian], Nauka, Moscow (1977).
T. I. Kuznetsova and V. A. Zubov, Actes du 10-eme Congres International du Cinematographie Ultra-Rapid, 35, 218 (1973).
V. A. Zubov, Physical Principles of Holography [in Russian], Moscow Power Engineering Institute, Moscow (1978).
F. Sommerfeld, Optik, Wiesbaden (1950).
V. I. Malyshev, Introduction to Experimental Spectroscopy [in Russian], Nauka, Moscow (1979).
V. V. Lebedeva, Optical Spectroscopy Technology [in Russian], M. V. Lomonosov Moscow State University, Moscow (1986).
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Merkin, A.A., Sultanov, T.T. & Zubov, V.A. Acoustooptical Spectral Processing of Radar Signals Taking into Account the Signal Spectra of Local Heterodyne and Optical Radiation. Journal of Russian Laser Research 22, 561–583 (2001). https://doi.org/10.1023/A:1012966317015
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DOI: https://doi.org/10.1023/A:1012966317015