J4 ›› 2012, Vol. 39 ›› Issue (3): 72-79.doi: 10.3969/j.issn.1001-2400.2012.03.011

• Original Articles • Previous Articles     Next Articles

New method of deriving the spectrum for general bistatic SAR processing

LIU Yuchun;WANG Jun;LI Hongwei   

  1. (National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2011-08-30 Online:2012-06-20 Published:2012-07-03
  • Contact: LIU Yuchun E-mail:lycdgp@163.com

Abstract:

To improve the accuracy of the bistatic point target reference spectrum(BPTRS), a new method of deriving the spectrum is poposed.An optimal square approach technique is employed to handle the double square root of two range histories. The point of stationary phase is derived by solving the polynomial equation. Finally an accurate BPTRS is consequently formulated. Simulation results show that the spectrum estimation of the proposed method has a better focusing performance.

Key words: bistatic SAR, reference spectrum, optimal square approach, principle of stationary phase

CLC Number: 

  • TN959.3