Concerned with the problem of the operation platforms that is of some maneuverability and equipped with radar and electronic warfare system antagonizing radar end guided missiles,a method of anti-missiles using the range gate pull-off jamming in support of radar was proposed.

An algorithm based on variable structure interacting multiple model is presented to track range gate pull off (RGPO) target in airborne fire control radar.

Aimed at the problem that the range gate pull-in jamming is no effect to the staggered pulse radar and random location pulse radar, in this paper, the opinion that the range gate pull-in for LFM radar can be realized by frequency modulation is expressed in the view of group delay of matched filter.