sarproz-group

Sentinel-1 co-registration image shift

This topic contains 1 reply, has 2 voices, and was last updated by  periz 8 months, 1 week ago.

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  • #2054

    jaroslav
    Participant

    Hello!
    It often happens, that Sentinel doesn’t take pictures of an exactly same place. One-two burst difference may take place.
    I am wondering, if two pictures overlap covers area, that I’m interested in, what is the maximum allowed image shift, so that co-registration can be trusted?

  • #2055

    periz
    Keymaster

    Hi Jaroslav,
    I assume you are talking about azimuth shifts. That is common for Sentinel and it’s not a problem.
    You should not have any coregistration issues.
    Moreover, you can put consecutive images in the SLC folder: Yuxiao developed a simple algorithm to merge them, and you can treat them as a whole image.

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