An Efficient ISAR Imaging Deception Jamming Method of Chirp Modulation Signal

Inverse Synthetic aperture radar (ISAR) imaging deception jamming method of Chirp Modulation Signal is a powerful tool in electronic war. In this paper, an Efficient All-Digital ISAR raw signal deception model for air targets is presented. The proposed procedure is based on an angle-frequency domain analysis: a proper analytical reformulation of the ISAR raw signal expression is presented. It is shown that this reformulation allows us to design a very efficient simulation scheme which applies the joint analysis method of wideband frequency-angle domain. Accordingly, the problem is solved that the target wide frequency band scattering field can't be effectively simulation in time domain and the computational load of ISAR raw signal deception is dramatically reduced.