Here is the video for radiation source localization problem:
http://www.youtube.com/watch?v=HKofA3ygvPA
And here are two other use cases: http://www.youtube.com/watch?v=49rxqItJFeY http://www.youtube.com/watch?v=jrq6nq3FLmo
This was all done in Matlab as that was the preferred platform for my lab.