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针对脉冲多普勒(Pulse Doppler, PD)雷达高脉冲重复频率模式下的距离模糊问题，以及经典中国余数定理、一维集法、固定权重算法存在的鲁棒性差、计算复杂度高、权重无法动态适配不同脉冲重复频率的PD雷达测量通道的误差等缺陷，提出基于概率密度函数动态加权的距离估计算法。基于目标三维运动轨迹生成带噪声的多频观测余数模拟实际场景干扰，通过历史误差核密度估计动态调整通道权重，实现对低噪声通道的动态倾斜，并结合目标运动连续性准则约束缩小搜索范围，降低计算复杂度。仿真结果表明，与对比算法相比，所提算法在测距精度上平均误差减小了45.4%～66.7%,解算速度降低至0.002 s。
Abstract：Aiming at the range ambiguity problem in the high pulse repetition frequency mode of pulse Doppler(PD) radar, and the poor robustness, high computational complexity, weights' failure to dynamically adapt to the PD radar measurement channel errors of different Pulse Repetition frequencies, as well as other defects, in classical Chinese remainder theorem(CRT), one-dimensional set method, and fixed weight algorithm, a weighted residual fuzzy algorithm based on the boundary adaptation of the probability density function is proposed. The multi-frequency observation remainder with noise is generated based on the three-dimensional motion trajectory of the target to simulate the interference of the actual scene. The channel weights are dynamically adjusted through historical error kernel density estimation to achieve the dynamic tilt of the low-noise channel, and the search range is narrowed in combination with the constraint of the continuity criterion of the target motion, which reduces the computational complexity. Simulation results show that, compared with the contrast algorithms, the proposed algorithm reduces the average error in ranging accuracy by 45.4% to 66.7%, and the computation speed is reduced to 0.002 s.
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基本信息:
DOI：10.13682/j.issn.2095-6533.2026.03.002
中图分类号:TN957.51
引用信息:
[1]黄海生,辛嘉琳,曹成虎.基于概率密度函数动态加权的距离估计算法[J].西安邮电大学学报,2026,31(03):11-19.DOI:10.13682/j.issn.2095-6533.2026.03.002.
基金信息:
陕西省重点研发计划项目(2024GX-ZDCYL-01-24)
2026-03-18
2026-03-18
2026-03-18