Which effect occurs when a RADAR antenna detects its own speed?

When a radar antenna detects its own speed, it primarily relates to the concept of the Doppler effect, which describes changes in frequency or wavelength due to the relative motion between the source of the radar waves and the target. The choice that reflects the occurrence of radar detecting its own speed accurately is aligned with the concept of the Harmonic Effect.

In practical radar operation, if a radar unit moves, it can inadvertently measure its own motion, which may affect the accuracy of its readings. This interaction can sometimes lead to erroneous readings about the speed of targets. The radar system might interpret the changes in the reflected signals as a result of the Doppler shift, hence causing potential confusion in the interpretation of speed readings. Understanding this effect is crucial for radar operators so they can properly calibrate and account for their own motion when assessing the speed of objects in their operational environment.

The other terms, while they may sound relevant, do not accurately describe the phenomenon of a radar detecting its own speed in this context.