cone of confusion

The cone of confusion is a phenomenon that occurs when using certain types of radar or sonar systems to locate objects. Imagine hearing the echo of a sound bouncing off objects; if the echoes come from many directions, it can be difficult to determine the exact position of the object. Similarly, in radar or sonar, if the signals are reflected from many angles or directions, the system can't precisely pinpoint the object's location. This results in a "cone-shaped" zone where it’s uncertain exactly where the object is, hence the name. Improving tracking involves changing angle or signal methods to resolve this ambiguity.