This paper studies the movement estimation of the high resolution radar signal with additional Gaussian color noise.Movement between the missile and the target has notable influence on the range profile.The stepped frequency echo has polynomial phase

and the influence of velocity and acceleration was expressed as the second the third phase.Cyclostationary method is not sensitive to the Gaussian color noise and can do with non-Gaussian color noise as well

which is proved to be effective in low SNR environment.In this paper

the cyclostationary method is used to estimate the movement parameters from the phase in low SNR environment and to get ideal range profile as the result.