Abstract
A technique is proposed for resolving two incoherent signal sources of the same frequency and significantly different intensities with similar angular coordinates. The technique is based on aperture synthesis of a receiving array, first, by the signal of higher-power source and the estimate of its angular coordinate with subsequent subtraction of the signal spectrum from the angular spectrum of the received field. This makes it possible to achieve aperture synthesis and estimate the angle of arrival of a higher-power signal. Thus, the technique is of interest not only for synthesized apertures, but also for arrays with a filled aperture, since it eliminates the restrictions imposed by the presence of lateral lobes of the array response. Our mathematical simulation data demonstrate the efficiency of this technique in the detection and location of weak signals against the background of high-power noise sources even at their close angular positions.
Similar content being viewed by others
References
V. A. Zverev, P. I. Korotin, and A. L. Matveev, Acoust. Phys. 59, 86 (2013).
V. A. Zverev, P. I. Korotin, and A. L. Matveev, Acoust. Phys. 57, 551 (2011).
M. P. Hayes and P. T. Gough, IEEE J. Ocean. Eng. 34, 207 (2009).
S. W. Autrey, IEEE J. Ocean. Eng. 84, 592 (1988).
S. Stergiopoulos and E. J. Sullivan, J. Acoust. Soc. Am. 86, 158 (1989).
N.-C. Yen and W. Carey, J. Acoust. Soc. Am. 86, 754 (1989).
S. Stergiopoulos and H. Urban, IEEE J. Ocean. Eng. 17, 16 (1992).
S. Stergiopoulos, J. Acoust. Soc. Am. 87, 2128 (1990).
G. S. Edelson and D. W. Tufts, IEEE J. Ocean. Eng. 17, 48 (1992).
P. I. Korotin, A. A. Rodionov, and V. I. Turchin, in Proc. Int. Conf. on Antenna Theory Techn., Lviv, Ukraine, 2009.
A. S. Ivanenkov, P. I. Korotin, D. A. Orlov, A. A. Rodionov, and V. I. Turchin, in Proc. Forum Acusticum, Aalborg, Denmark, 2011, pp. 2509–2514.
A. S. Ivanenkov, P. I. Korotin, D. A. Orlov, A. A. Rodionov, and V. I. Turchin, in Proc. Forum Acusticum, Aalborg, Denmark, 2011, pp. 2825–2830.
A. S. Ivanenkov, P. I. Korotin, D. A. Orlov, A. A. Rodionov, and V. I. Turchin, in Proc. 24th Sess. Russ. Acoust. Soc., GEOS, Moscow, 2011, vol. 2, pp. 205–209.
V. V. Artel’nyi, P. V. Artel’nyi, P. I. Korotin, A. A. Rodionov, and V. I. Turchin, in Proc. 24th Sess. Russ. Acoust. Soc., GEOS, Moscow, 2011, vol. 2, pp. 233–236.
D. A. Orlov, in Proc. 24th Sess. Russ. Acoust. Soc., GEOS, Moscow, 2011, vol. 2, pp. 229–233.
V. A. Zverev, Akust. Zh. 40, 401 (1994).
V. A. Zverev and A. A. Stromkov, Separation of Signals from Noises by Digital Methods (Inst. Prikl. Fiz. Ross. Akad. Nauk, Nizhn. Novgorod, 2001) [in Russian].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.A. Zverev, 2016, published in Akusticheskii Zhurnal, 2016, Vol. 62, No. 3, pp. 375–384.
Rights and permissions
About this article
Cite this article
Zverev, V.A. Incoherent signal source resolution based on coherent aperture synthesis. Acoust. Phys. 62, 383–391 (2016). https://doi.org/10.1134/S1063771016030167
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063771016030167