Study On Cluster Target Resolution And Imaging With Complicated Motion

Ballistic missile is a sharp sword in modern war. It is very important to establish a effective Missile Defense System for national defense system. Missile targets discrimination is a key technique in missile defense system. So research on missile cluster resolution, dynamical parameters estimation and 3D imaging for missile targets plays a great role in ballistic missile defense system.This paper concerns the missile targets discrimination technology. Mathematical model of the precession targets is built. Amplitude-comparison monopulse method for missile cluster resolution is studied. The CSRDI_clean method for precession target imaging is proposed.The concrete contents are as follows:1. Precession is a kind of micro-motion of many spatial targets, the mathematical model of the precession targets is built and the micro motion properties is analyzed.2. The physical mechanism of keystone transform is analyzed. Based on Match Fourier Transform, clean method and Amplitude-comparison monopulse technology, A new method for tracking and prediction of the future location of missile targets is proposed.3. Based on the coherent single range Doppler interferometry(CSRDI) imaging method ,the dynamical parameters of the precession is estimated. Based on clean method, the CSRDI_clean method is proposed for 3D imaging. The simulation results demonstrate the effectiveness of this approach.4. The last chapter is the summary of the dissertation.It also discussed future research areas to be further studied.