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Since the traditional statistical and physical algorithms in the inversion of refractivity from radar clutter (RFC) cannot track omni directions in real time, a new filter algorithm (extended Kalman filter and unscented Kalman filter) is proposed. The parameter equation of atmospheric duct, observation operator, state equation of filter arithmetic are derived separately. Finally, the implementation of the iterative inversion filter algorithm is derived. On the theoretical basis, two algorithms above are tested separately with or without considering the variation of refractivity with time. The experimental result indicates that unscented Kalman filter is suited to solve the nonlinear inversion problem, which has significance in theoretical foundation and technological support for practical applications for the future.
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Keywords:
- atmospheric ducts /
- radar clutter /
- extended Kalman filter(EKF) /
- unscented Kalman filter (UKF)
[1] Yan H J, Fu Y, Hong Z J 2006 Introduction to Modern Atmospheric Refraction (Shanghai: Science and Educational Press) [严豪健、符 养、洪掁杰 2006 现代大气折射引论 (上海: 上海科技教育出版社)]
[2] Gerstoft P, Rogers L T, Hodgkiss W S, Krolik J L 2003 Radio Sci. 38 8053
[3] [4] [5] Gerstoft P, Hodgkiss W S, Rogers L T, Jablecki M 2004 Radio Sci. 39 6006
[6] [7] Vasudevan S, Anderson R, Kraut S, Gerstoft P 2007 Radio Sci. 42 2014
[8] Sheng Z, Huang S X. 2009 Acta Phys. Sin. 58 4328(in Chinese) [盛 峥、黄思训 2009 58 4328]
[9] [10] [11] Sheng Z, Huang S X, Zeng G D 2009 Acta Phys. Sin. 58 4335(in Chinese) [盛 峥、黄思训、曾国栋 2009 58 4335]
[12] Sheng Z, Huang S X, Zhao X F 2009 Acta Phys. Sin. 58 6627(in Chinese) [盛 峥、黄思训、赵小峰 2009 58 6627]
[13] [14] [15] Sheng Z, Huang S X 2010 Acta Phys. Sin. 59 1734(in Chinese) [盛 峥、黄思训 2010 59 1734]
[16] [17] Sheng Z, Huang S X 2010 Acta Phys. Sin. 59 3912(in Chinese) [盛 峥、黄思训 2010 59 3912]
[18] Pachter M, Chandler P R 1993 IEEE Trans. on Aerospace and Elect. Syst. 29 946
[19] [20] Tudoroiu N, Khorasani K 2005 IEEE Trans. on Indus. Electr. and Control Appli. 29 494
[21] [22] [23] Barrios A E 1994 IEEE Antennas Propag. 42 90
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[1] Yan H J, Fu Y, Hong Z J 2006 Introduction to Modern Atmospheric Refraction (Shanghai: Science and Educational Press) [严豪健、符 养、洪掁杰 2006 现代大气折射引论 (上海: 上海科技教育出版社)]
[2] Gerstoft P, Rogers L T, Hodgkiss W S, Krolik J L 2003 Radio Sci. 38 8053
[3] [4] [5] Gerstoft P, Hodgkiss W S, Rogers L T, Jablecki M 2004 Radio Sci. 39 6006
[6] [7] Vasudevan S, Anderson R, Kraut S, Gerstoft P 2007 Radio Sci. 42 2014
[8] Sheng Z, Huang S X. 2009 Acta Phys. Sin. 58 4328(in Chinese) [盛 峥、黄思训 2009 58 4328]
[9] [10] [11] Sheng Z, Huang S X, Zeng G D 2009 Acta Phys. Sin. 58 4335(in Chinese) [盛 峥、黄思训、曾国栋 2009 58 4335]
[12] Sheng Z, Huang S X, Zhao X F 2009 Acta Phys. Sin. 58 6627(in Chinese) [盛 峥、黄思训、赵小峰 2009 58 6627]
[13] [14] [15] Sheng Z, Huang S X 2010 Acta Phys. Sin. 59 1734(in Chinese) [盛 峥、黄思训 2010 59 1734]
[16] [17] Sheng Z, Huang S X 2010 Acta Phys. Sin. 59 3912(in Chinese) [盛 峥、黄思训 2010 59 3912]
[18] Pachter M, Chandler P R 1993 IEEE Trans. on Aerospace and Elect. Syst. 29 946
[19] [20] Tudoroiu N, Khorasani K 2005 IEEE Trans. on Indus. Electr. and Control Appli. 29 494
[21] [22] [23] Barrios A E 1994 IEEE Antennas Propag. 42 90
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