sarproz-group

Sentinel-1 incidence angle

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    • #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

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