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A numerical study of effects on detection height of a radio acoustic sounding system influenced by atmospheric wind and temperature

Wang Pan-Pan Zhou Chen Song Yang Zhang Yuan-Nong Zhao Zheng-Yu

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A numerical study of effects on detection height of a radio acoustic sounding system influenced by atmospheric wind and temperature

Wang Pan-Pan, Zhou Chen, Song Yang, Zhang Yuan-Nong, Zhao Zheng-Yu
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  • Radio acoustic sounding system (RASS) is a detection technique using the interaction between radio wave and acoustic wave to remotely measure vertical profiles of the atmospheric temperature, and usually composed of a Doppler radar with fixed beam (monostatic or bistatic) and an acoustic source with high power. By combining acoustic propagation equation and radio wave propagation equation in a disturbance medium and using a finite-difference time-domain method, a numerical model describing the interaction between acoustic wave and electric wave is constructed, and the model is used to analyze the effects of wind and temperature on detection height of RASS. In the atmospheric temperature background, the propagations of a single frequency acoustic wave packet under different wind conditions are simulated, and the scattering propagation of electric wave packets corresponding to the acoustic scatterer are analyzed and compared. Besides, the entire physical process are described from the angle of energy density. The numerical simulation results show that the propagation trajectories of both acoustic wave and radio wave backscattering echo are changed due to the existence of wind field and temperature profile. The presence of wind field results in an offset of acoustic wave front, reducing the strength and changing the trajectory of radio wave backscattering echo, so that the detection height is limited due to the reduction of receiving data. The simulation results of the acoustic wave reveal that the temperature profile mainly affects the propagation velocity of acoustic wave, while the presence of wind field may result in shifts of propagation trajectory and acoustic wave front, and the greater the wind speed, the more the horizontal shift of acoustic wave front is. The numerical analyses of scattering propagations of radio wave with the acoustic scatterer at the same height under different background atmospheric conditions manifest that the stronger the wind speed, the more the deviation of electric wave echo from the receive antenna is, and the smaller the echo intensity is when the scattering echo propagates to the same position. The theoretical calculations with the acoustic wave scatterer at different heights under the same atmospheric wind field (strong wind) background demonstrate that if the height of scattering point is reduced, the offset of the scattering echo “bunching point” at the same altitude will be greatly improved and the intensity will be enhanced, but it also means the decline of detection height. In order to improve the detection height under the background of wind field, some methods are adopted, such as using a bistatic radar antenna or increasing the reception antenna area.
    [1]

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    [2]

    Smith Jr P L 1961 5th National Convention on Military Electronics Midwest Research Institute, Washington, DC, System Analysis, June 26-28, 1999

    [3]

    Marshall J M, Peterson A M, Branes Jr A A 1972 Appl. Opt. 11 108

    [4]

    Frankel M S, Chang N J F, Sanders Jr M J 1977 Bull. Am. Meteorol. Soc. 58 928

    [5]

    Fukushima M S, Akita K, Masuda Y 1979 Enuiron. Res. Jpn. 104 1

    [6]

    Azizyan G V, Bovsheverrov V M, Gorelik A G, Yegorov M A, Krayukin G A, Knyazen L V 1981 Izv. Acad. Sci. USSR Atmos. Oceanic Phys., Engl. Transi. 17 112

    [7]

    Masuda Y 1988 Radio Sci. 23 647

    [8]

    Yee K S 1966 IEEE Trans. Antennas Propagat. 14 302

    [9]

    Taylor C D, Lam D H, Shumpert T H 1969 IEEE Trans. Antennas Propagat. 17 585

    [10]

    Merewether D E 1971 IEEE Trans. Electromagn. Compat. 13 41

    [11]

    Luebbers R J, Kuriz K S, Schneider M, Hmsberger 1991 IEEE Trans. Antennas Propagat. 39 429

    [12]

    Zhu X M, Ren X C, Guo L X 2014 Acta Phys. Sin. 63 054101 (in Chinese) [朱小敏, 任新成, 郭立新 2014 物理学报 63 054101]

    [13]

    Li J, Guo L X, Zeng H, Han X B 2009 Chin. Phys. Soc. 18 1674

    [14]

    Liu S B, Liu S Q 2004 Chin. Phys. Soc. 13 1009

    [15]

    Song Y, Zhao Z Y, Zhang Y N 2014 Acta Geophys. Sin. 57 1746 (in Chinese) [宋杨, 赵正予, 张援农 2014 地球物理学报 57 1746]

    [16]

    Song Y 2014 Ph. D. Dissertation (Wuhan: Wuhan University) (in Chinese) [宋杨 2014 博士学位论文(武汉: 武汉大学)]

    [17]

    Beer T 1974 Atmospheric Waves (London: Adam Hilger)

    [18]

    Smith E K, Weintraub S 1953 PROC. IRE 41 1035

    [19]

    David H, Robert R, Jerl W 2005 Fundamental of Physics (USA: John Wiley and Sons) p509

    [20]

    Mur G 1981 IEEE Trans. Electromagn. Compat. 23 377

    [21]

    Berenger J P 1994 J. Comput. Phys. 114 185

    [22]

    Courant R, Friedrichs K, Lewy H 1928 Math. Ann. 100 32

    [23]

    Du G H, Zhu Z M, Gong X F 2012 Acoustic Foundation (3rd Ed.) (Nanjing: Nanjing University Press) (in Chinese) [杜功焕, 朱哲民, 龚秀芬2012 声学基础(第三版)(南京: 南京大学出版社)]

    [24]

    Ma W W 2006 Physics (5th Ed.) (Beijing: Higher Education Press) (in Chinese) [马文蔚 2006 物理学(第五版)(北京: 高等教育出版社)]

  • [1]

    Xiong H 2000 Radio Wave Propagation (Beijing: Electronic Industry Press) (in Chinese) [熊皓 2000 无线电波传播(北京: 电子工业出版社)]

    [2]

    Smith Jr P L 1961 5th National Convention on Military Electronics Midwest Research Institute, Washington, DC, System Analysis, June 26-28, 1999

    [3]

    Marshall J M, Peterson A M, Branes Jr A A 1972 Appl. Opt. 11 108

    [4]

    Frankel M S, Chang N J F, Sanders Jr M J 1977 Bull. Am. Meteorol. Soc. 58 928

    [5]

    Fukushima M S, Akita K, Masuda Y 1979 Enuiron. Res. Jpn. 104 1

    [6]

    Azizyan G V, Bovsheverrov V M, Gorelik A G, Yegorov M A, Krayukin G A, Knyazen L V 1981 Izv. Acad. Sci. USSR Atmos. Oceanic Phys., Engl. Transi. 17 112

    [7]

    Masuda Y 1988 Radio Sci. 23 647

    [8]

    Yee K S 1966 IEEE Trans. Antennas Propagat. 14 302

    [9]

    Taylor C D, Lam D H, Shumpert T H 1969 IEEE Trans. Antennas Propagat. 17 585

    [10]

    Merewether D E 1971 IEEE Trans. Electromagn. Compat. 13 41

    [11]

    Luebbers R J, Kuriz K S, Schneider M, Hmsberger 1991 IEEE Trans. Antennas Propagat. 39 429

    [12]

    Zhu X M, Ren X C, Guo L X 2014 Acta Phys. Sin. 63 054101 (in Chinese) [朱小敏, 任新成, 郭立新 2014 物理学报 63 054101]

    [13]

    Li J, Guo L X, Zeng H, Han X B 2009 Chin. Phys. Soc. 18 1674

    [14]

    Liu S B, Liu S Q 2004 Chin. Phys. Soc. 13 1009

    [15]

    Song Y, Zhao Z Y, Zhang Y N 2014 Acta Geophys. Sin. 57 1746 (in Chinese) [宋杨, 赵正予, 张援农 2014 地球物理学报 57 1746]

    [16]

    Song Y 2014 Ph. D. Dissertation (Wuhan: Wuhan University) (in Chinese) [宋杨 2014 博士学位论文(武汉: 武汉大学)]

    [17]

    Beer T 1974 Atmospheric Waves (London: Adam Hilger)

    [18]

    Smith E K, Weintraub S 1953 PROC. IRE 41 1035

    [19]

    David H, Robert R, Jerl W 2005 Fundamental of Physics (USA: John Wiley and Sons) p509

    [20]

    Mur G 1981 IEEE Trans. Electromagn. Compat. 23 377

    [21]

    Berenger J P 1994 J. Comput. Phys. 114 185

    [22]

    Courant R, Friedrichs K, Lewy H 1928 Math. Ann. 100 32

    [23]

    Du G H, Zhu Z M, Gong X F 2012 Acoustic Foundation (3rd Ed.) (Nanjing: Nanjing University Press) (in Chinese) [杜功焕, 朱哲民, 龚秀芬2012 声学基础(第三版)(南京: 南京大学出版社)]

    [24]

    Ma W W 2006 Physics (5th Ed.) (Beijing: Higher Education Press) (in Chinese) [马文蔚 2006 物理学(第五版)(北京: 高等教育出版社)]

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Publishing process
  • Received Date:  17 September 2014
  • Accepted Date:  12 December 2014
  • Published Online:  05 May 2015

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