To improve the tracking accuracy of hypersonic target in near-space

the effect of target hypersonic movement on radar detection and tracking is analyzed

and a hypersonic target tracking algorithm is proposed based on radial velocity compensation and cancellation processing of conjoint measurements under the ECEF coordinate.Firstly

based on the analysis of effect of target hypersonic movement

measurement model is constructed to reduce the filter divergence which is caused by model mismatch.Then

the high dynamic biases due to the target hypersonic movement are approximately compensated through radial velocity estimation with ambiguity solution

to achieve the target tracking with low systematic biases in near space.Finally

the measurement equation of single radar is constructed to further achieve the robust tracking of the near-space hypersonic target

and the track association problem with lower systematic biases can be avoided at the same time.Simulation results show that near-space target tracking can be finished more effectively than existing methods by using the proposed algorithm.