PRF selection for tracking of MPRF

Airborne radar uses medium pulse repetition frequency (MPRF) waveform to detect or track air-to-air targets in clutter environments. The tracking mode can determine the exact position and velocity of the target from the tracking filter. However, if the target signals overlap the clutter signals on the R-D (Range-Doppler) map or if the eclipse occurs, accurate tracking becomes difficult. So, we should choose a track waveform that solves these problems. In this paper, we propose a method to design MPRF to track a detected target. In the proposed method, we define an allowable zone to avoid the ground clutters and eclipses in R-D map, and select the most optimal PRF among the appropriate PRF candidates.