What does RADAR stand for in the context of speed detection?

In the context of speed detection, RADAR stands for "Radio Detection and Ranging." This term accurately describes the fundamental principle behind how RADAR systems operate. The system emits radio waves which then bounce off moving objects, such as vehicles. By analyzing the time it takes for the waves to return and the frequency shift of the returning waves, the system can determine both the distance to the object and its speed. This is essential for law enforcement agencies and speed detection operations, as it allows them to measure the speed of vehicles accurately.

The other options do not correctly describe the technology employed in RADAR systems or misinterpret its function. Understanding the correct terminology is crucial for effectively utilizing and communicating about RADAR technology in various applications, including speed enforcement.