Aiming at the track initiation for multiple frequency continuous wave (CW) radar, a new method using the radial
velocity measurements is presented. Firstly, the design method of track gate is designed. Then the algorithm for track
initiation using the radial velocity measurements is expanded. Finally, the Monte Carlo simulation results show the
effectiveness of the algorithm. Moreover, the performance of target tracking is compared for different wavegate design methods from the view of constant ranging errors and changing errors.