一种距离相位编码距离模糊抑制技术A range ambiguity suppression technology based on range phase coding
李健,孙光才,景国彬,邢孟道
摘要(Abstract):
提出一种距离相位编码距离模糊抑制技术,该技术通过发射距离相位编码多波形信号,造成距离模糊信号相对于目标信号在距离频域产生频谱偏移。再针对目标信号构造匹配滤波函数和对应其频谱支撑区间的滤波器,滤除部分距离模糊能量并造成距离模糊信号脉压后散焦,从而实现距离模糊的有效抑制,提高合成孔径雷达(SAR)图像质量。最后给出面仿真结果,证明该方法的可行性和有效性。
关键词(KeyWords): 合成孔径雷达;距离模糊;相位编码;多波形;频谱偏移;图像质量
基金项目(Foundation): 国家自然科学基金创新研究群体项目(61621005);; 中央高校基本科研业务费(JB180213)~~
作者(Author): 李健,孙光才,景国彬,邢孟道
DOI: 10.16652/j.issn.1004-373x.2018.13.001
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