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基于导航信号的BiSAR成像技术
  • ISSN号：1000-1093
  • 期刊名称：《兵工学报》
  • 时间：0
  • 分类：TN95[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]北京理工大学信息与电子学院,北京100081
  • 相关基金：国家自然科学基金（60890073,61032009,61120106004）资助课题
作者： 田卫明[1], 曾涛[1], 胡程[1]
关键词： 双基地合成孔径雷达, 导航信号, 直达波, 成像, Bistatic Synthetic Aperture Radar （BiSAR）, Global Navigation Satellite System （GNSS） signal, Direct signal, Imaging
中文摘要：

该文研究了导航卫星照射的BiSAR系统的成像处理技术，针对导航信号BiSAR成像所存在的特殊问题，利用直达波信号提取距离徙动参数并在方位时域实现了距离徙动的校正，通过多普勒补偿的方法解决了导航信号对多普勒敏感的问题，利用对直达波信号的相位历程进行高阶多项式拟合实现了对多普勒相位历程的精确近似，方位向通过去斜处理实现方位向聚焦。仿真数据和实测数据的成像处理结果验证了该算法的正确性。

英文摘要：

In this paper, an imaging processing method for Bistatic Synthetic Aperture Radar （BiSAR） utilizing navigation satellites is investigated. Considering the special problems regarding the use of Global Navigation Satellite System （GNSS） signals to form SAR images, direct signals are used to estimate range migration parameters, and range migration is corrected in the azimuth time domain. The Doppler sensitivity of phase-coded signals was solved by Doppler compensation. By fitting the Doppler phase history with a high-order polynomial, the Doppler phase history is accurately approximated and the azimuth compression is implemented by de-chirp processing. By performing simulations and experimental data processing, the proposed method is verified.

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期刊信息
  • 《兵工学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学技术协会
  • 主办单位:中国兵工学会
  • 主编：许毅达
  • 地址：北京2431信箱
  • 邮编：100089
  • 邮箱：acta@cn-bgxh.cn
  • 电话：010-68962718 68963060
  • 国际标准刊号：ISSN：1000-1093
  • 国内统一刊号：ISSN：11-2176/TJ
  • 邮发代号:82-144
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:15352