sarproz-group

Sentinel-1 incidence angle

This topic contains 5 replies, has 3 voices, and was last updated by  periz 3 weeks, 1 day ago.

  • Author
    Posts
  • #1866

    jaroslav
    Participant

    Hello everyone,
    I would like to ask if there is a way to get incidence angle value for each pixel of each image.

    Thank you

  • #1867

    periz
    Keymaster

    Hi Jaroslav,
    yes, there are several ways for doing it.
    By understanding why you need it and what you want to do we could suggest you the best way.
    For the moment I can tell you that there are 2 functions, one gives you the normal baseline given the SAR coordinates, and other one the incidence angle give the geographic coordinates:
    Bn=get_baseline(handles,ImgM,ImgS,Coord)
    IncAng=geo2incang(Lat,Lon,h,Img,DirSite)
    Img’s are in the format ‘yyyymmdd’
    before using them you have to load variables in matlab with the command “fast”
    dan

  • #4671

    periz
    Keymaster

    what is that you do not understand, please be specific.

    • #4673

      mehrnoosh
      Participant

      I do not know to how to use IncAng=geo2incang(Lat,Lon,h,Img,DirSite) function

      Where are Lat,Lon,h,Img,DirSite inputs? how to load them?

  • #4674

    periz
    Keymaster

    lat, lon, h (latitude, longitude, height) are the coordinates of the point where you want to calculate the incidence angle
    Img is the image relative to the incidence angle you want to calculate
    DirSite is the directory of your project
    if you use sarproz in matlab, use the interface to load your project
    then type “fast” and hit enter
    the software will load in the workspace the variables you need
    in particular
    handles.SiteParam.DirSite (project directory)
    Master (master image)
    Img (list of all images)
    Please be aware that you need a bit of familiarity with Matlab.
    And this is not the place where to ask about it, find some local help.
    Best

  • #4668

    mehrnoosh
    Participant

    Hello

    I work with TerraSAR-X images. I need incidence angle and range distance for each pixel of image. How to get incidence angle and range distance value for each pixel of image?

    I read your replies about 2 functions. But I could not understand that. Please guide me and explain more.

    Thanks

You must be logged in to reply to this topic.