方位多通道SAR的通道间误差影响分析
DOI:
作者:
作者单位:

南京电子技术研究所 南京 210000

作者简介:

通讯作者:

中图分类号:

TN95

基金项目:


Analysis of theeffect of channel error on azimuth multichannel SAR
Author:
Affiliation:

Nanjing Research Institute of Electronic Technology, Nanjing 210013,Chian

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    方位多通道合成孔径雷达(SAR)通过多通道接收采样与方位频谱重构,突破了模糊设计约束,具备同时大幅宽和高分辨率的能力。然而,雷达系统多路接收通道间幅相不一致性和卫星姿态的不稳定等因素均造成通道间误差,造成SAR成像质量的下降。将基于通道误差对方位多通道SAR成像质量的影响展开,首先分析了存在通道误差时的多通道SAR信号模型,并给出存在通道误差时的通道误差补偿流程和频谱重构方法;根据给出的信号误差模型和频谱重构算法,结合仿真数据详细对比分析了不同通道误差对SAR成像性能的影响,相关分析结果用于指导方位多通道SAR系统通道系统设计。

    Abstract:

    The azimuth multichannel SAR, which is based on multichannel sampling and azimuth spectrum reconstruction, breaks through the ambiguity design constraints, and has the capability of wide swath and high resolution at the same time. However, the amplitude and phase inconsistency of the multichannel and the instability of the satellite attitude cause the error, which results in the decrease of the SAR imaging quality. In this paper, the effect of channel error on the quality of azimuth multichannel SAR imaging is studied. Firstly, the multichannel SAR signal model with channel error is analyzed; the channel error compensation process and spectrum reconstruction method are presented; According to the signal error model and spectral reconstruction algorithm is given with simulation data, the influence of different channel errors on the performance of SAR is analyzed in detail, and the results are used to guide the design of multichannel SAR system.

    参考文献
    相似文献
    引证文献
引用本文

徐辉,刘爱芳,夏雪.方位多通道SAR的通道间误差影响分析[J].电子测量技术,2017,40(7):152-156

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2017-08-15
  • 出版日期: