Pan Xiao-min, Sheng Xin-qing. Investigation on Statistic Properties of SAR Return Signals Using MLFMA[J]. Journal of Electronics & Information Technology, 2007, 29(2): 489-491. doi: 10.3724/SP.J.1146.2005.00629
Citation:
Pan Xiao-min, Sheng Xin-qing. Investigation on Statistic Properties of SAR Return Signals Using MLFMA[J]. Journal of Electronics & Information Technology, 2007, 29(2): 489-491. doi: 10.3724/SP.J.1146.2005.00629
Pan Xiao-min, Sheng Xin-qing. Investigation on Statistic Properties of SAR Return Signals Using MLFMA[J]. Journal of Electronics & Information Technology, 2007, 29(2): 489-491. doi: 10.3724/SP.J.1146.2005.00629
Citation:
Pan Xiao-min, Sheng Xin-qing. Investigation on Statistic Properties of SAR Return Signals Using MLFMA[J]. Journal of Electronics & Information Technology, 2007, 29(2): 489-491. doi: 10.3724/SP.J.1146.2005.00629
The principal objective of the present work is to investigate the statistic properties of SAR return signals. The Synthetic Aperture Radar (SAR) return signals from 3-dimensional Gauss random rough conducting surfaces is efficiently and accurately computed using Multi-Level Fast Multipole Algorithm (MLFMA) combined with traditional Monte Carlo method. According to the real situation of SAR, incidents elevation angles are fixed at 45, and relevant azimuth angles vary from 88 to 92. Return signals are divided into several groups in terms of geometry coefficients. Then the statistic properties of these obtained signals are investigated by computing the means of return signals amplitudes and phases. Several useful conclusions are acquired.
[1] Ulaby F T, Moore R K, and Fung A K. Microwave Remote Sensing. Artech House, Dedham, MA, Vol.1, 1981, Chapter 1. [2] Fung A K. Microwave Scattering and Emission Models and Their Application. Artech House, Norwood, 1994, Chapter1. [3] Tsang L.[J].Kong J A, and Ding K H. Scattering of Electromagnetic Waves: Numerical Simulations. John Wiley Sons, New York.2000,:- [4] Garcia N and Stoll E. Monte Carlo calculation for electromagnetic-wave scattering from random rough surfaces[J].Phys. Rev. Lett.1984, 52(20):1798-1801 [5] Song J M and Chew W C. Multilevel fast-multipole algorithm for solving combined field integral equations of electromagnetic scattering[J].Microwave Opt. Tech. Lett.1995, 10(1):14-19 [6] Sheng X Q, Jin J M, Song J M, Lu C C, and Chew W C. Solution of combined-field integral equation using multilevel fast multipole algorithm for scattering by homogeneous bodies[J].IEEE Trans. on Antennas Propagat.1998, 46(11):1718-1726 [7] Song J and Chew W C. The fast Illinois solver code: requirements and scaling properties[J].IEEE Computational Science and Engineering.1998, 5(3):19-23