مدل سازی الکترومغناطیسی کره رسانا برای شبیه سازی سیگنال دریافتی در رادار مشاهده گر از پشت دیوار

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه شیراز

2 شیراز

چکیده

رادار مشاهده‌گر از پشت دیوار، راداری نسبتا جدید با برد کوتاه است که از امواج الکترومغناطیسی برای کشف اهداف پشت دیوار استفاده می‌کند. در شبیه سازی و همچنین در عمل، کره‌ی رسانا به خاطر تقارنی که دارد اغلب به عنوان یک بازتابنده‌ی مرجع برای کالیبراسیون سیستم‌های راداری مورد استفاده قرار می‌گیرد. در این مقاله برای شبیه سازی سیگنال دریافتی در رادار مشاهده‌گر از پشت دیوار، ابتدا مدل میدان الکتریکی بازتابی از کره‌ی رسانا در فضای آزاد مورد بررسی قرار گرفته است. سپس با مدل سازی دیوار به صورت صفحه‌ی دی الکتریک ، مدلی از کره‌ی رسانا در پشت دیوار ارائه شده است. برای تصویر سازی کره‌ی رسانا در پشت دیوار بتنی، از الگوریتم RMA استفاده شده و تصویری از کره واقع در پشت دیوار بدست آمده است. نتایج شبیه سازی مناسب بودن مدل بکار رفته برای کره و همچنین دیوار را برای کاربرد مورد نظر نشان می‌دهد.

کلیدواژه‌ها

عنوان مقاله [English]

Electromagnetic Modeling of Conducting Sphere for Received Signal Simulation of See Through the Wall Radar

نویسندگان [English]

  • Hamidreza Dehghan Menshadi 1
  • mehrzad biguesh 2
  • Mohammad Ali Masnadi Shirazi 1
1
2 shirazu
چکیده [English]

See Through the Wall Radar, is a relatively new small range radar that uses electromagnetic waves to detect targets behind wall. Because of its symmetry, a conducting sphere is often used as a reference scatterer to calibrate radars and measure the scattering properties of other radar targets. In this paper, to simulate received signal for see through the wall radar, scattering model of a conducting sphere in free space is presented. Then using a dielectric sheet to represent the wall between the radar system and the sphere behind it, scattering model of a sphere behind the wall, is developed. To create the image of sphere behind the concrete wall using the signals acquired with the proposed model, Range Migration Algorithm (RMA) and coherent background subtraction is used and an image of sphere behind wall has been achieved. Simulation results reveals the suitability of the proposed model for See Through the Wall Radar received signal simulation.

کلیدواژه‌ها [English]

  • See Through Wall
  • Range Profile
  • Conducting Sphere
  • Concrete Wall

مراجع

  1. F. Tivive, A. Bouzerdoum, and M. Amin, “A Subspace
  2. Projection Approach For Wall Clutter Mitigation In
  3. Through-The-Wall Radar Imaging” IEEE Trans. on
  4. Geoscience and Remote Sensing, vol. 53, no. 4, pp. 2108-
  5. , Apr. 2015.
  6. M. Amin, K. Sarabandi, “Special Issue On Remote Sensing
  7. Of Building Interior” IEEE Trans. on Geoscience and
  8. Remote Sensing, vol. 47, no. 5, pp. 1267-1268, May. 2009.
  9. E. J. Baranoski, “Through-Wall Imaging: Historical
  10. Perspective And Future Directions” J. Franklin Inst, vol.
  11. , no. 6, pp. 556–569, Sep. 2008.
  12. M. Farwell, J. Ross, R. Luttrell, D. Cohen, W. Chin, and T.
  13. Dogaru, “Sense Through The Wall System Development
  14. And Design Considerations” Journal of the Franklin
  15. Institute, vol. 345, no. 6, pp. 570-591, Sep. 2008.
  16. S. Salous, “Radio Propagation Measurement And Channel
  17. Modelling”; John Wiley & Sons, 2013.
  18. A. Muqaibel, A. Safaai-Jazi, A. Bayram, A. Attiya, and S.
  19. Riad, "Ultrawideband Through-the-Wall Propagation," IEE
  20. Proceedings-Microwaves, Antennas and Propagation, vol.
  21. , no. 6, pp. 581-588, Dec. 2005.
  22. D. Pena, R. Feick, H. D. Hristov, and W. Grote,
  23. "Measurement And Modeling Of Propagation Losses In
  24. Brick And Concrete Walls For The 900-Mhz Band," IEEE
  25. Trans. on Antennas and Propagation, vol. 51, no. 1, pp. 31-
  26. , Jan. 2003.
  27. I. Cuiňas and M. G. Sanchez., "Measuring, Modeling, And
  28. Characterizing Of Indoor Radio Channel At 5.8 GHz," IEEE
  29. Trans. on Vehicular Technology, vol. 50, no. 2, pp. 526-535,
  30. Mar. 2001.
  31. K. Chetty, G. E. Smith, and K. Woodbridge, “Through-The-
  32. Wall Sensing Of Personnel Using Passive Bistatic Wi-Fi
  33. Radar At Standoff Distances,” IEEE Trans. on Geoscience
  34. and Remote Sensing, vol. 50, no. 4, pp. 1218-1226, Apr.
  35.  
  36. A. N. Gaikwad, D. Singh, and M. Nigam, “Application Of
  37. Clutter Reduction Techniques For Detection Of Metallic
  38. And Low Dielectric Target Behind The Brick Wall By
  39. Stepped Frequency Continuous Wave Radar In Ultra-
  40. Wideband Range,” IET radar, sonar & navigation, vol. 5,
  41. no. 4, pp. 416-425, Apr. 2011.
  42. F. H. C. Tivive, A. Bouzerdoum, and M. G. Amin, “An
  43. SVD-Based Approach For Mitigating Wall Reflections In
  44. Through-the-Wall Radar Imaging,” IEEE Proc. in Radar
  45. Conference (RADAR), pp. 519-524, 2011.
  46. F. Ahmad and M. G. Amin, “Wall Clutter Mitigation For
  47. MIMO Radar Configurations In Urban Sensing,” in Proc. of
  48. the 11th International Conference on Signal Processing and
  49. their Applications (ISSPA), pp. 1165-1170, 2012.
  50. Y.-S. Yoon and M. G. Amin, “Spatial Filtering For Wall-
  51. Clutter Mitigation In Through-the-Wall Radar Imaging,”
  52. IEEE Trans. on Geoscience and Remote Sensing, vol. 47,
  53. no. 9, pp. 3192-3208, Sep. 2009.
  54. K. E. Browne, R. J. Burkholder, and J. L. Volakis, “Fast
  55. Optimization Of Through-Wall Radar Images Via The
  56. Method Of Lagrange Multipliers,” IEEE Trans. on Antennas
  57. and Propagation, vol. 61, no. 1, pp. 320-328, Jan. 2013.
  58. M. Dehmollaian and K. Sarabandi, “Refocusing Through
  59. Building Walls Using Synthetic Aperture Radar,” IEEE
  60. Trans. on Geoscience and Remote Sensing, vol. 46, no. 6,
  61. pp. 1589-1599, Jun. 2008.
  62. P. H. Chen, M. C. Shastry, C.-P. Lai, and R. M. Narayanan,
  63. “A Portable Real-Time Digital Noise Radar System For
  64. Through-The-Wall Imaging,” IEEE Trans. on Geoscience
  65. and Remote Sensing, vol. 50, no. 10, pp. 4123-4134, Oct.
  66.  
  67. Y. Wang and A. E. Fathy, “Advanced System Level
  68. Simulation Platform For Three-Dimensional UWB
  69. Through-Wall Imaging SAR Using Time-Domain
  70. Approach,” IEEE Trans. on Geoscience and Remote
  71. Sensing, vol. 50, no. 5, pp. 1986-2000, May. 2012.
  72. M. J. Øyan, S.-E. Hamran, L. Hanssen, T. Berger, and D.
  73. Plettemeier, “Ultrawideband Gated Step Frequency Ground-
  74. Penetrating Radar,” IEEE Trans. on Geoscience and Remote
  75. Sensing, vol. 50, no. 1, pp. 212-220, Jan. 2012.
  76. G. L. Charvat, L. C. Kempel, E. J. Rothwell, C. M. Coleman,
  77. and E. L. Mokole, “A Through-Dielectric Radar Imaging
  78. System,” IEEE Trans. on Antennas and Propagation, vol.
  79. , no. 8, pp. 2594-2603, Aug. 2010.
  80. R. E. Collin, “Field Theory Of Guided Waves”; Wiley-IEEE
  81. Press, 1991.
  82. C. A. Balanis, “Advanced Engineering Electromagnetics”;
  83. vol. 111, Wiley, 2012.
  84. W. G. Carrara, R. S. Goodman, and R. M. Majewski,
  85. “Spotlight Synthetic Aperture Radar Signal Processing
  86. Algorithms”; Boston, MA: Artech House, 1995.

فایل ها

سابقه مقاله

  • تاریخ دریافت: 21 فروردین 1395
  • تاریخ بازنگری: 02 بهمن 1402
  • تاریخ پذیرش: 28 شهریور 1397
  • تاریخ انتشار: 01 مرداد 1395

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