Lidar: Light detection and ranging. A system that measures the time it takes for light to bounce off a remote object and return to the sensor to calculate the distance to that object.
Laser: Light that is of a pure color and whose waves are all in phase. It is a very focused type of light that is used to measure distances in lidar units.
Resolution: The number of data points that you take in a certain area. The more data points, the higher the resolution, and the more accurately your map reflects the actual object you are imaging.
Remote imaging: Any technique that creates a picture or map of an object from a distance.
GPS: Global Positioning System. A system of satellites and receiving units that accurately tells you where you are on (or above) the Earth’s surface.