摘要
针对目标机动时回波信号的多普勒频率为时变量,基于FFT处理的相参积累输出信噪比下降问题,提出采用周期图法对加速度进行估计,然后进行加速度补偿.仿真结果表明,经加速度补偿后,连续波雷达的测距性能得到了很大的改善。
In view of the Doppler frequency of maneuverable target＇s echo being time-varying variables, the estimation of acceleration using the method of periodogram was presented, based on the reduction of the coherent accumulation output SNR processed with FFT, and the compensation of acceleration was made. Simulation results show that the big improvement on the ranging performance of CW radar is achieved after the acceleration compensation.
出处
《空军雷达学院学报》
2009年第4期273-274,277,共3页
Journal of Air Force Radar Academy
关键词
双频测距
机动目标
加速度估计
dual frequency ranging
maneuverable targets
acceleration estimation
