Anna, I&#x27;m replying to myself since your posts are coming up [dead] and I can&#x27;t vouch for your reply to me like I did for your top-level comment.<p>Yes, that is basically how it works.  The system takes measurements at a series of slant ranges (called range bins) for each beam position.  The returns from those range bins can be mapped to a physical location as long as the location of the receiver is known.  Record enough beam positions in a line and you can map a 2D image.