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不同孔径时旋转曲面目标的散斑统计特性
  • ISSN号：0023-074X
  • 期刊名称：Chinese Science Bulletin
  • 时间：2011
  • 页码：281-287
  • 分类：TN957.52[电子电信—信号与信息处理;电子电信—信息与通信工程]
  • 作者机构：[1]西安电子科技大学理学院,西安710071
  • 相关基金：国家自然科学基金资助项目（60771038）
  • 相关项目：复杂粒子体系波束散射和目标激光距离多普勒成像的微运动特征分析
作者： 武颖丽|吴振森|
关键词： 动态散斑, 探测孔径, 曲率半径, 相关时间
中文摘要：

研究了高斯波束照射旋转曲面目标在菲涅耳衍射区产生的动态散斑强度起伏的统计特性，推导了探测孔径尺寸大小不同时，散斑强度起伏相关函数依赖于旋转目标曲率半径的关系．在不同探测孔径大小情况下，首先计算了平面目标与球目标的相关距离，接着给出了曲面目标以恒定角速度旋转时散斑强度起伏的相关时间随曲率半径的变化关系．最后，介绍了相关函数与探测时间之间的变化情况．结果表明，采用一定尺寸的探测孔径代替点探测时，曲面目标的散斑强度起伏的相关时间变得更容易测量．通过测量曲面目标的散斑强度起伏的相关时间可以非接触、非破坏性地测量旋转凸体的曲率半径．

同期刊论文项目
目标激光距离多普勒成像
期刊论文 79 会议论文 36 获奖 2 专利 2
复杂粒子体系波束散射和目标激光距离多普勒成像的微运动特征分析
期刊论文 135 会议论文 59
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可见光／中红外双波段位标指示器光学系统设计
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期刊信息
  • 《科学通报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院
  • 主编：周光召
  • 地址：北京东黄城根北街16号
  • 邮编：100717
  • 邮箱：csb@scichina.org
  • 电话：010-64036120 64012686
  • 国际标准刊号：ISSN：0023-074X
  • 国内统一刊号：ISSN：11-1784/N
  • 邮发代号:80-213
  • 获奖情况:
  • 首届国家期刊奖,中国期刊方阵“双高”期刊,第三届中国出版政府奖
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  • 被引量:81792