High dynamic carrier tracking technology based on Kalman Filter

摘要

This paper proposes a carrier tracking method based on the Kalman Filter (KF) for the high dynamic target tracking. In the proposed method, the carrier tracking is achieved via the phase locked loop (PLL) serially assisted by the frequency locked loop (FLL). Furthermore, based on the KF theory, we analyse the carrier tracking loop and get the system equation of PLL and FLL. The proposed method can overcome high dynamic effects and achieve high accuracy tracking with good stability in low carrierto-noise ratio (CNR) circumstance. Compared to the traditional Infinite Impulse Response (IIR) filter tracking method, the proposed method has better tracking performance. Simulation results verify the effectiveness of the proposed method.