J4 ›› 2012, Vol. 39 ›› Issue (4): 46-51+102.doi: 10.3969/j.issn.1001-2400.2012.04.009

• Original Articles • Previous Articles     Next Articles

Novel passive radar location algorithm based on Memetic  optimization by using the bearing-and-Doppler frequency

TONG Fei;WANG Jun;LI Hongwei   

  1. (National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2011-05-04 Online:2012-08-20 Published:2012-10-08
  • Contact: TONG Fei E-mail:shadytong@126.com

Abstract:

As the fast and high accurate location information is difficult to obtain in passive radar systems, this paper proposes a passive radar location algorithm based on Memetic optimization by using the bearing-and-Doppler frequency, which is the first time to introduce the Memetic algorithm to the passive location field. With a newly designed decreasing direction as the Memetic local search strategy, the target location is transformed to a problem of function optimization. Experimental results validate that the new algorithm, realizing a fast and high accurate target location, can not only retain the relative error under a low level so that the location accuracy can approach the Cramer-Rao Bound steadily, but also converge to the optimal solution more rapidly than evolutionary algorithm location.

Key words: passive radar, Memetic algorithm, local search, Cramer-Rao Bound (CRB), evolutionary algorithm

CLC Number: 

  • TN958.97