J4 ›› 2009, Vol. 36 ›› Issue (6): 1132-1138.

• Original Articles • Previous Articles    

New method for the anti radar missile to antagonize the non-coherent radar decoy

QU Zhi-yu;SI Xi-cai;ZHU Xiao   

  1. (College of Information & Comm. Eng., Harbin Eng. Univ., Harbin  150001, China)
  • Received:2008-08-17 Online:2009-12-20 Published:2010-01-20
  • Contact: QU Zhi-yu E-mail:quzhiyu01@126.com

Abstract:

The traditional wideband PRS(Passive Radar Seeker) of the ARM (Anti Radar Missile) can not antagonize the radar decoy, a new-style wideband PRS should be developed. Using the super resolution DOA(Direction of Arrival) estimation algorithm to reduce the resolution angle is an effective method for the PRS to antagonize the non-coherent radar decoy. Considering the power and correlation property between radar and non-coherent decoy, an improved subspace DOA estimation method using the invariance property of noise subspace is proposed. Compared to the traditional MUSIC algorithm, this new method shows not only a better resolution in the condition of closely spaced sources, but also superior performance in case of different power or partially correlated sources. The PRS(Passive Radar Seeker) using this new method can distinguish radar and non-coherent decoy with good performance. Both the simulation result and the experimental data confirm the performance of the method.

CLC Number: 

  • TN974