期刊文献+

非匀速平飞模式下双基地SAR成像分析 被引量:2

The Imaging Analysis of Bistatic SAR With Parallel Track of Variable Velocity
在线阅读 下载PDF
导出
摘要 该文研究了收发平台非匀速平飞模式下的双基地SAR成像问题。首先构建收发非匀速平飞模式的几何场景,并通过对回波瞬时收发距离的分析得到了双基地SAR回波的近似模型。收发平台速度变化使得波束不同步,导致SAR数据在方位向非均匀采样,该文首先分析了将非匀速平飞双基地模型等效成单基地变速运动模型的方法,然后采用非均匀傅里叶变换处理变速运动引起的非均匀采样的问题。多组不同条件下的仿真实验表明双基地SAR图像质量较好,验证了该文方法的有效性。 The asynchronous bistatic SAR imaging issue of variable velocity transceiver is studied in this paper.First of all,the geometric scene of the variable velocity transceiver model is constructed,and the approximation model of the echo of the bistatic SAR is obtained based on the analysis of the instantaneous transceiver distance of the echo.Variable velocity transceiver leads to transceiver position asynchronous,and cause that the SAR data in the azimuth position samples non-uniformly.This paper first analyzes the method with which asynchronous bistatic model equals to monostatic variable velocity motion model.Then with the non-uniform FFT,it resolves the non-uniform sample problems raised by variable velocity motion.The simulation experiments show that the bistatic SAR images have good quality,which verifies the effectiveness of the method provided in this paper.
出处 《电子与信息学报》 EI CSCD 北大核心 2010年第11期2648-2654,共7页 Journal of Electronics & Information Technology
关键词 双基地SAR 非匀速平飞模式 等效场景 非均匀离散傅里叶变换 距离多普勒算法 Bistatic Synthetic Aperture Radar(SAR) Parallel track of variable velocity Equivalent scene Non-uniform Discrete Fourier Transform(DFT) Range-Doppler algorithm
作者简介 通信作者:彭岁阳lvye002004@163.com 彭岁阳:男,1981年生,博士生,从事雷达成像算法、目标识别和信号处理方面的研究, 张军:男,1973年生,副教授,从事雷达智能信号处理和制导雷达应用技术等研究. 胡卫东:男,1967年生,教授,博士生导师,从事数据融合与目标识别的科研与教学. 卢大威:男,1982年生,博士生,从事宽带目标联合跟踪与识别和雷达信号处理方面的研究. 沈振康:男,1936年生,教授,博士生导师,研究方向为数字图像处理、目标识别、信号处理.
  • 相关文献

参考文献10

  • 1Soumekh M. Bistatic synthetic aperture radar inversion with application in dynamic object imaging[J]. IEEE Transactions on Signal Processing, 1991, 39(9): 2044-2054.
  • 2Ender J, Walterscheid I, and Brenner A. Bistatic SARtanslational invariant processing and experimental results[J]. IEE Proceedings.Radar Sonar Navigation, 2006, 153(3): 177-183.
  • 3Neo Y L, Wong F H, and Cumming I. Focusing bistatic SAR images using non-linear chirp scaling. Radar 2004, Toulouse, France, Oct. 2004: 18-22.
  • 4Ding Y and Munson D C. A fast back-projection algorithm for bistatic SAR imaging. IEEE International Conference on Image Processing, Austin, 1994: 456-460.
  • 5Rigling B D and Moses R L. Polar format algorithm for bistatic SAR. IEEE Transactions on Geoscience and Remote Sensing, 2004, 40(4): 1147-1159.
  • 6雷科,汪学刚,公岷.基于双向同步技术的机载双站SAR同步研究[J].系统工程与电子技术,2008,30(4):641-643. 被引量:5
  • 7Otmar Loffeld and Holger Nies, et al.. Models and usefule relations for bistatic SAR[J]. IEEE Transactions on Geosci Remote Sensing, 2004, 42(10): 2031-2038.
  • 8井伟,张磊,邢孟道,保铮.非匀速平台SAR成像算法研究[J].西安电子科技大学学报,2008,35(4):605-608. 被引量:5
  • 9Liu Q H and Nguyen N. An accurate algorithm for Non-Uniform Fast Fourier Transforms(NUFFT's)[J]. IEEE Microwave and Guided Wave Letters, 1998, 8(1): 18-20.
  • 10张升康,杨汝良.基于二次距离压缩的双基地合成孔径雷达斜视成像算法[J].电子与信息学报,2008,30(7):1717-1721. 被引量:7

二级参考文献23

  • 1黄源宝,李真芳,保铮.机载大斜视SAR的快速简易成像方法[J].西安电子科技大学学报,2004,31(4):543-546. 被引量:6
  • 2杨新华,陈玉松,金兴文.基于FFT谱分析算法的高精度相位差测量方法[J].自动化与仪器仪表,2006(6):75-77. 被引量:16
  • 3张振华,保铮,邢孟道,井伟.同航线双基合成孔径雷达成像的频域分析[J].自然科学进展,2007,17(6):809-816. 被引量:9
  • 4Matthias W. Synchronisation of bistatic radar systems[J]. Geoscience and Remote Sensing Symposium, IGARSS'04, IEEE International Proceedings, 2004,3 (20-24) :1750 - 1753.
  • 5Dieter K. Two-way time transfer via communication satellites[J]. Proceedings of the IEEE, 1991,79 (7) :983 - 990.
  • 6Marwan Y, Robert M, Gerhard K. Performance prediction of a phase synchronization link for bistatic SAR[J]. Geoscience and Remote Sensing Letters, IEEE, 2006,3 (3) :429 - 433.
  • 7Walterscheid I and Ender J. Geometry and system aspects for a bistatic airborne SAR-experiment. Proc. EUSAR'04, Ulm, Germany, May 2004: 567-570.
  • 8Walterscheid I and Ender J. New results on bistatic synthetic aperture radar. IEE Electronics Letters, 2004, 40(19): 1224-1225.
  • 9Yates G, Horne A M, and Blake A P, et al.. Bistatic SAR image formation. Proc. EUSAR'04, Ulm, Germany, May 2004: 581-584.
  • 10Soumekh M. Bistatic synthetic aperture radar inversion with application in dynamic object imaging. IEEE Trans. on Signal Processing, 1991, 39(9): 2044-2054.

共引文献13

同被引文献13

引证文献2

二级引证文献4

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部