Hypersonic Target Tracking With High Dynamic Biases

The chirp signal, which is of large time bandwidth product, is widely used in the current radar systems. However, high dynamic biases are brought into the radar ranging when the signal is used in the hypersonic target tracking, due to the distance-Doppler coupling. In view of the situation, this letter proposes an unbiased tracking algorithm which can eliminate the influence of high dynamic biases at the same time of target tracking.