How does radar technology measure speed?

Radar technology measures speed by emitting radio waves that travel through the air and reflect off objects, such as moving vehicles. When these waves hit a vehicle, they bounce back to the radar unit. The key to determining speed lies in the Doppler effect, which involves analyzing the frequency change of the returned signal. If an object is moving towards the radar, the frequency of the returned waves is higher, while if it’s moving away, the frequency is lower. This change allows the radar equipment to calculate the speed of the vehicle by comparing the original emitted frequency to the frequency of the reflected waves. This method is efficient and widely used for law enforcement and traffic monitoring, making it a reliable way to measure vehicle speed accurately.