针对用固定窗口长度的多普勒滤波器进行测速时的不准确性,提出了自适应调节窗口长度的多普勒滤波器,给出累积估计错误准则求得最佳的窗口长度.利用卡尔曼滤波器提取加速度,自适应调节多普勒滤波器的窗口长度,通过雷达信号处理与数据处理一体化的方法,得到更为准确的多普勒频率及目标速度.仿真结果表明,它比基于固定窗口长度的多普勒滤波器有更精确的速度估计。 Aiming at the inaccuracy of the speed of fixed-window Doppler velocimetry, a Doppler filter with adaptive window length adjustment is proposed, and the optimal window length is obtained by using the cumulative estimation error criterion. The filter extracts the acceleration and adaptively adjusts the window length of the Doppler filter, and achieves more accurate Doppler frequency and target speed through the integration of radar signal processing and data processing.The simulation results show that it is better than the fixed The window length Doppler filter has a more accurate speed estimate.