The temporal decorrelation characteristics of X-band radar backscatter from wind-influenced vegetation were investigated using a short-range CW radar. Radar reflectance data were gathered on various types of individual trees from a distance of approximately 30 m. The windspeed was monitored during each measurement, which lasted 5 s. The crown cover and the mean leaf area of the trees were also recorded. Autocovariance plots were generated for each measurement, from which the decorrelation time was estimated. As expected, the return signals decorrelated faster at higher wind speeds. However, the decorrelation time was also found to depend on the tree type, tree structure, and leaf cover characteristics. Measured decorrelation times for moderate winds (7-9 m/s) were often between 40-60 ms, although the lowest decorrelation time measured under these conditions was 14 ms for the Eastern Cottonwood. In lighter winds (1-4 m/s), decorrelation times were much longer, and there was substantial spread in the data.<>


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Temporal decorrelation of X-band backscatter from wind-influenced vegetation


    Contributors:


    Publication date :

    1992-04-01


    Size :

    600437 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Quantifying Temporal Decorrelation over Boreal Forest at L- and P-band

    Lee, Seung-Kuk / Kugler, Florian / Papathanassiou, Konstantinos et al. | German Aerospace Center (DLR) | 2008

    Free access

    Tackling Temporal Decorrelation with the RMOG Model

    Lavalle, M. / Khun, K. / Ahmed, R. et al. | British Library Conference Proceedings | 2013


    Analyzing Decorrelation of Multi-temporal SAR Data on InSAR

    Hao, Bingyuan / Ma, Chao / Zhang, Guifang et al. | IEEE | 2008


    Recent Advances on InSAR Temporal Decorrelation: Theory and Observations Using UAVSAR

    Lavalle, M. / Hensley, S. / Simard, M. et al. | British Library Conference Proceedings | 2012


    InSAR Decorrelation at X-Band From the Joint TanDEM-X/PAZ Constellation

    Sica, Francescopaolo / Bretzke, Sofie / Pulella, Andrea et al. | German Aerospace Center (DLR) | 2020

    Free access