Volume 35 Issue 2
Mar.  2015
Turn off MathJax
Article Contents
Article Navigation >  Chinese Journal of Space Science  > 2015  >  35(2): 244-252
Zhu Jintai, Dong Xiaolong, Wang Lei. In-orbit calibration of Haiyang-2 scatterometer using natural land-extended targets[J]. Chinese Journal of Space Science, 2015, 35(2): 244-252. doi: 10.11728/cjss2015.02.244
Citation: Zhu Jintai, Dong Xiaolong, Wang Lei. In-orbit calibration of Haiyang-2 scatterometer using natural land-extended targets[J]. Chinese Journal of Space Science, 2015, 35(2): 244-252. doi: 10.11728/cjss2015.02.244
shu

In-orbit calibration of Haiyang-2 scatterometer using natural land-extended targets

doi: 10.11728/cjss2015.02.244
  • 1.

    The CAS Key Laboratory of Microwave Remote Sensing, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190

  • 2.

    University of Chinese Academy of Sciences, Beijing 100049

  • Received Date: 2014-03-03
  • Rev Recd Date: 2014-10-17
  • Publish Date: 2015-03-15
    Abstract
  • The scatterometer onboard Haiyang-2 satellite (HY-2 SCAT) is a rotating pencil-beam scatteromter. It provides 4 times of radar cross-section (σ0) measurements at different azimuth/incidence angles over a wind vector cell, in order to determine the near-surface wind field using the Geophysical Model Function (GMF). To achieve the required wind vector accuracy, radar cross-section measurements must be calibrated within a few tenths of a decibel (within 0.5dB). In this paper, HY-2 SCAT is calibrated using natural land-extended targets over different regions and is compared with OSCAT. σ0 errors over different azimuth angles are eliminated. The error sources of the measurements are analyzed and the pointing errors are compared with that estimated from measurements of Altimeter onboard HY-2 satellite.

     

    • FullText(HTML)
  • loading
    • References(12)
  • [1]
    Zhu Jintai, Dong Xiaolong, Lin Wenming, et al. Calibration of the Ku-band rotating fan-beam scatterometer using land extended-area targets[J]. J. Elect. Inf. Tech., 2013, 35(8):1793-1799. In Chinese (朱金台, 董晓龙, 林文明, 等. Ku波段旋转扫描扇形波束散射计地面扩展目标在轨定标[J]. 电子与信息学报, 2013, 35(8):1793-1799)
    [2]
    Jiang X W, Lin M S, Liu J Q, et al. The HY-2 satellite and its preliminary assessment[J]. Int. J. Digit. Earth, 2012, 5(3):266-281
    [3]
    Wang X N, Liu L X, Shi H Q, et al. In-orbit calibration and performance evaluation of HY-2 scatterometer[C]//IEEE International Geoscience and Remote Sensing Symposium. Munich: IEEE, 2012
    [4]
    Long D G, Skouson G B. Calibration of spaceborne scatterometer using tropical rain forests[J]. IEEE Trans. Geosci. Remote Sens., 1996, 34(2):413-424
    [5]
    Zou Juhong, Lin Mingsen, Zou Bin, et al. Simulation study of image reconstruction for HY2-SCAT backscatter measurements and its application in retrieval of wind field in typhoon conditions[J]. Chin. High Tech. Lett., 2012, 22 (7):713-720. In Chinese (邹巨洪, 林明森, 邹斌, 等, HY-2散射计高分辨率σ0图像重构技术在台风风场反演中的仿真研究[J]. 高技术通讯, 2012, 22(7):713-720)
    [6]
    Elyouncha A, Neyt X. A method for cross-comparison of scatterometer data using natural distributed targets: application to ERS-1 and ERS-2 data during the tandem mission[C]//Proc of SPIE, Remote Sensing of the Ocean, Sea Ice, Coastal Waters and Large Water Regions 2012, Edinburgh, UK, 2012
    [7]
    Zec J, Long D G, Jones W L. NSCAT normalized radar backscattering coefficient biases using homogenous land targets[J]. J. Geophys. Res. Ocean., 1999, 104 (C5):11557-11568
    [8]
    Zec J, Jones W L, Long D G. SeaWinds beam and slice balance using data over Amazonian rainforest[C]//IEEE International Geoscience and Remote Sensing Symposium, Honolulu, Hawaii: IEEE, 2000
    [9]
    Kunz L B, Long D G. Calibrating SeaWinds and QuikSCAT scatterometers using natural land targets[J]. IEEE Geosci. Remote Sens. Lett., 2005, 2(2):182-186
    [10]
    Stoffelen A. A simple method for calibration of a scatterometer over the ocean[J]. J. Atmos. Ocean Tech., 1999, 16(2):275-282
    [11]
    Bhowmich S A, Kumar R, and Kumar A K, Cross calibration of the OceanSAT-2 scatterometer with QuikSCAT scatterometer using natural terrestrial targets[J]. IEEE Trans. Geosci. Remote Sens., 2013, (99):1-6
    [12]
    Brown G. The average impulse response of a rough surface and its applications[J]. IEEE Trans. Antenn. Prop., 1977, 25 (1):67-74
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article Views(1342) PDF Downloads(1159) Cited by()
    Proportional views
    Related

    Journal Introduction

    ISSN 0254-6124       CN 11-1783/V

    Copyright © Editorial Office of Chinese Journal of Space Science.  京ICP备08100722号

    Supported by: Beijing Renhe Information Technology Co., Ltd.  

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return