Here on land, the speed of a vehicle is recorded in either miles per hour or kilometers per hour. In either case, determining how fast you're moving on land is fairly simple because you can see ...

DME is a radio navigation technology that measures the slant range (distance) between an aircraft and a base station.[Credit: Istock] Distance Measuring Equipment (DME) is an aviation radar system ...

Of course, many different types of distance measuring sensors exist but not all sensors are the same. Each sensor has its own advantages and disadvantages. At its most basic level, a distance ...