论文部分内容阅读
线性FMCW雷达是一种高距离分辨率雷达,运动补偿是其实现距离高分辨率的核心技术。采用多重复频率波形,提出一种多普勒频率串算法,从模糊的速度估计中恢复目标的真实速度,采用运动补偿得到高分辨的距离估计。同时为解决多目标分辨的问题,采用一种基于目标均方误差的配对算法。仿真结果表明多普勒频率串算法较中国余数理论对速度估计的性能有了明显的提高,充分说明了DFC算法的有效性。
Linear FMCW radar is a kind of high-range resolution radar, and motion compensation is the core technology to realize high-range resolution. Using multi-frequency waveform, a Doppler frequency-string algorithm is proposed to recover the true velocity of the target from the fuzzy velocity estimation. The high-resolution distance estimation is obtained by motion compensation. At the same time, to solve the problem of multi-objective resolution, a pairing algorithm based on target mean square error is adopted. The simulation results show that the Doppler frequency string algorithm has a significant improvement on the speed estimation performance compared with the Chinese remainder theory, which fully demonstrates the validity of the DFC algorithm.