What is the primary function of the time of flight measurement in speed detection?

The primary function of the time of flight measurement in speed detection is to calculate the velocity of a moving target. This method involves measuring the time it takes for a signal, such as a radar pulse or laser beam, to travel to the target and back. By capturing this time interval and knowing the speed at which the signal travels, typically the speed of light for laser and radar applications, the system can accurately determine the distance to the target. Once the distance and the time are known, the speed (or velocity) of the moving object can be calculated using the basic principles of physics, specifically, the relationship between distance, time, and speed.

Understanding this core function is essential for effective speed enforcement and accurate data collection in law enforcement contexts.