For US developments, see: Information at Sea, Shipboard Command and Control in the U.S. Navy, from Mobile Bay to Okinawa, Timothy S. Wolters, The Johns Hopkins University Press, 2013. This is a history of communication to and between ships at sea, starting with the Civil War (flags and flares). The last chapter covers the development of the shipboard Combat Information Center (CIC). With the advent of shipboard radar, the Navy opened several schools to train personnel in the use and maintenance of the equipment. They also recognized the need for fighter director officers, and opened two schools to train them. One was in Norfolk and the other was in San Diego. Lieutenant Commander John Hook Griffin ran the San Diego school. In 1941 he had been part of group sent to Britain to observe British methods of fighter direction. So specially designed adult-sized tricycles were used as part of the San Diego training. Students piloted friendly tricycles and instructors operated enemy tricycles. As you can see from the British photo, the friendly tricycles had "blinders" so they couldn't look at the enemy tricycles and modify their intercept.
The link in EwenS #2 covers this in more detail than is in this book.