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米波雷达低仰角目标多径模型及其反演方法研究

郑轶松 陈伯孝

郑轶松, 陈伯孝. 米波雷达低仰角目标多径模型及其反演方法研究[J]. 电子与信息学报, 2016, 38(6): 1468-1474. doi: 10.11999/JEIT151013
引用本文: 郑轶松, 陈伯孝. 米波雷达低仰角目标多径模型及其反演方法研究[J]. 电子与信息学报, 2016, 38(6): 1468-1474. doi: 10.11999/JEIT151013
ZHENG Yisong, CHEN Baixiao. Multipath Model and Inversion Method for Low-angle Target in Very High Frequency Radar[J]. Journal of Electronics & Information Technology, 2016, 38(6): 1468-1474. doi: 10.11999/JEIT151013
Citation: ZHENG Yisong, CHEN Baixiao. Multipath Model and Inversion Method for Low-angle Target in Very High Frequency Radar[J]. Journal of Electronics & Information Technology, 2016, 38(6): 1468-1474. doi: 10.11999/JEIT151013

米波雷达低仰角目标多径模型及其反演方法研究

doi: 10.11999/JEIT151013
基金项目: 

国家自然科学基金(61573344)

Multipath Model and Inversion Method for Low-angle Target in Very High Frequency Radar

Funds: 

The National Natural Science Foundation of China (61571344)

  • 摘要: 现有的低仰角测高方法多采用镜面反射模型,将直达波与多径简化为两远场点源;然而实际中不规则反射面使多径回波波前畸变,远场点源模型难以完全描述多径信号。针对此模型失配问题,该文重点研究低仰角目标多径模型,首先分析经典多径模型,对反射系数和反射面高度进行参数反演;然后提出一种扰动多径模型,将反射面对多径回波的影响建模为扰动反射系数,并利用最大似然算法反演扰动反射系数。计算机仿真结果验证了参数反演方法的有效性;实测数据验证了复杂情形下所建模型的合理性和反演方法的有效性,提高了低仰角测高算法在实际阵地的适用性。
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出版历程
  • 收稿日期:  2015-09-09
  • 修回日期:  2016-01-22
  • 刊出日期:  2016-06-19

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