Analysis of Doppler Features of Spiral Maneuver of Reentry Missile with Time-Frequency Transform

To have excellent penetration capability, the tactical ballistic missile (TBM) maneuvers during the process of reentry, which makes the realization of interception somewhat difficult. In this paper a kind of trajectory maneuver-spiral maneuver is researched. At first, the mathematical model of spiral maneuver is developed. Then based on a hit-to-kill missile, the simulation results verify the accuracy of the mathematical model. With the moving window Fourier transform, analysis of the time-varying Doppler signature in the joint time-frequency domain can provide useful information for target detection, recognition, tracking and interception