Intro to Radar tutorials. Original source at https://www.ll.mit.edu/workshops/education/videocourses/introradar/index.html
This falls under fair use since the purpose is for education and simply making the content easier to watch than using the original site. Lecture notes for course at https://drive.google.com/open?id=15IlNynlvUwqPMk5hJNvB9Qj1wCesH1o7
