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

              • #5445
                n-ghasemian
                Participant

                  Hello everybody,

                  I read the explanations above about the two functions get_baseline and geo2incang. My problem is that I am using the compiled version of sarproz. Could anyone give me a detialed explanation about how to use these functions to extract the incidence angles for each PS or any other pixel in the compiled version of sarproz?

                  Thank you

                • #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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