An effective target tracking algorithm with anti-RGPO ability

To deal with target tracking in range gate pull off (RGPO) jamming, a tracking algorithm with anti-RGPO ability is proposed. The characteristics that false target will fall behind the true target with higher observed SNR is introduced into conventional test method, and a modified test is given. Combing the result of modified test and 2/3 logic test, whether RGPO exists is finally decided. If RGPO jamming is discriminated, the farther measurement in the measurement pair that passed the modified test is deleted to counter RGPO. Conventional probabilistic data association filter (PDAF) is used to process the measurements without RGPO jamming. Simulation results demonstrate that the tracking algorithm can keep high precision tracking of target in RPGO environment and decrease the tracking drop rate effectively.