Doppler spectrum

The Doppler spectrum is a way to visualize how the movement of objects affects the frequency of waves, such as sound or radar signals. When an object moves toward a sensor, the signals shift to higher frequencies; moving away shifts them lower. The spectrum displays these frequency shifts, revealing details about the object's speed and direction. It's like a fingerprint of motion, helping us analyze dynamic scenes or objects, such as weather patterns, vehicles, or biological tissues, by examining how their movement influences the signals received.