Volume 40 Issue 2
Feb.  2014
Turn off MathJax
Article Contents
Wang Yiran, Hong Xuebao, Zhang Bo, et al. Carrier phase difference estimation method based on DDMR-assistance for GNSS-R altimetry[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(2): 257-261. (in Chinese)
Citation: Wang Yiran, Hong Xuebao, Zhang Bo, et al. Carrier phase difference estimation method based on DDMR-assistance for GNSS-R altimetry[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(2): 257-261. (in Chinese)

Carrier phase difference estimation method based on DDMR-assistance for GNSS-R altimetry

  • Received Date: 16 Apr 2013
  • Publish Date: 20 Feb 2014
  • A carrier phase difference estimation method based on the delay-Doppler map receiver (DDMR)-assistance for (GNSS-R) coastal altimetry was proposed. The system structure and the signal processing method were given. The proposed method, which can avoid the complicated search for the GNSS spreading codes, uses the code phase difference observed from DDMR as the estimated time-delay between the spreading codes of the direct signal and the reflected signal, and then delays the tracked codes of the direct signal to achieve the open-loop tracking of the reflected signal. Field experiments with real coastal receivers demonstrate the effectiveness of this method, which can steadily track the weak reflected signal and accurately extract the difference of the carrier phase. The experiment results show that the altimetry accuracy is about 2.5 cm without data average or 0.6 cm with 0.5 s average.

     

  • loading
  • [1]
    Martin-Neira M.A passive reflectometry and interferometry system (PARIS):application to ocean altimetry[J].ESA Journal, 1993, 17:331-355
    [2]
    Valencia E, Camps A, Park H, et al.Impact of the observation geometry on the GNSS-R direct descriptors used for sea state monitoring[C]//International Geoscience and Remote Sensing Symposium (IGARSS).Piscataway, NJ:IEEE, 2012:2825-2828
    [3]
    Soulat F, Caparrini M, Germain O, et al.Sea state monitoring using coastal GNSS-R[J].Geophys Res Lett, 2004, 31(21):L21303
    [4]
    Marchan-Hernandez J F.Sea state determination using GNSS-R techniques:contributions to the PAU instrument[D].Barcelona: Univ Politecnica de Catalunya, 2009
    [5]
    Zavorotny V U, Voronovich A G.Scattering of GPS signals from the ocean with wind remote sensing application[J].IEEE Trans Geosci Remote Sens, 2000, 38(2):951-964
    [6]
    路勇, 杨东凯, 熊华刚, 等.基于GNSS-R的海面风场检测系统研究[J].武汉大学学报, 2009, 34(4):470-473 Lu Yong, Yang Dongkai, Xiong Huagang, et al.Study of ocean wind-field monitoring system based on GNSS-R[J].Geomatics and Information Science of Wuhan University, 2009, 34(4): 470- 473(in Chinese)
    [7]
    Garrison J L, Komjathy A, Zavorotny V U, et al.Wind speed measurement using forward scattered GPS signals[J].IEEE Trans Geosci Remote Sens, 2002, 40(1):50-602
    [8]
    Fabra F, Cardellach E, Rius A, et al.Phase altimetry with dual polarization GNSS-R over sea ice[J].IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(6):2112-2121
    [9]
    Zavorotny V U, Voronovich A G.Bistatic GPS signal reflections at various polarizations from rough land surface with moisture content[C]//International Geoscience and Remote Sensing Symposium (IGARSS).Piscataway, NJ:IEEE, 2000:2852-2854
    [10]
    Valencia E, Camps A, Rodriguez-Alvarez N, et al.Using GNSS-R imaging of the ocean surface for oil slick detection[J].IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2013, 6(1):217-223
    [11]
    Germain O, Ruffini G, Soulat F, et al.The eddy experiment:GNSS-R speculometry for directional sea-roughness retrieval from low altitude aircraft[J].Geophysical Research Letters, 2004, 31(21):L21307
    [12]
    Marchan-Hernandez J F, Rodriguez-Alvarez N, Camps A, et al.Correction of the sea state impact in the L-band brightness temperature by means of delay-Doppler maps of global navigation satellite signals reflected over the sea surface[J].IEEE Transactions on Geoscience and Remote Sensing, 2008, 46(10):2914-2923
    [13]
    Rodriguez-Alvarez N, Akos D M, Zavorotny V U, et al.Airborne GNSS-R wind retrievals using delay & Doppler maps[J].IEEE Transactions on Geoscience and Remote Sensing, 2013, 51(1):626-641
    [14]
    Helm A, Beyerle G, Potsdam M N G, et al.Detection of coherent reflections with GPS bipath interferometry[EB/OL].New York:Cornell University Library, 2004[2013-04-01].http://arxiv.org/abs/physics/0407091
    [15]
    Ruffini G, Caparrini M, Ruffini L.PARIS altimetry with L1 frequency data from the bridge 2 campaign experiment[R].CCN3-WP3 Technical Report, ESA/ESTEC Contract No.14285/85/nl/pb, 2002
    [16]
    Wang Yiran, Zhang Bo, Shao Dingrong.Differential coherent algorithm based on fast navigation-bit correction for airborne GNSS-R software receivers[J].Tsinghua Science and Technology, 2013, 18(1):88-99
    [17]
    Hajj G A, Zuffada C.Theoretical description of a bistatic system for ocean altimetry using the GPS signal[J].Radio Science, 2003, 38(5):1089
  • 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

    Article Metrics

    Article views(1773) PDF downloads(475) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return