MTI stands for Moving Target Indication; what is its goal?

MTI stands for Moving Target Indication; what is its goal?

• A. Attenuate stationary clutter to reveal moving targets.
• B. Only works with fixed targets.
• C. Increase clutter level to reduce sensitivity.
• D. Cancel out moving targets to create background.

Answer: (A)

MTI is all about making moving targets easier to see by removing clutter from stationary scenes. In radar, clutter from features like the ground, water, or weather tends to be stationary relative to the radar, so their returns have little or no Doppler shift. MTI uses rapid, successive radar pulses and Doppler processing to cancel or suppress these zero-Doppler (stationary) returns, effectively high-pass filtering in Doppler. Moving targets, on the other hand, have Doppler shifts and survive this processing, standing out against the quieter background. That’s why the goal is to attenuate stationary clutter to reveal moving targets. So the best description is: attenuate stationary clutter to reveal moving targets. This approach doesn’t imply it only works with fixed targets, it doesn’t aim to increase clutter, and it doesn’t cancel moving targets to create a background.

MTI is all about making moving targets easier to see by removing clutter from stationary scenes. In radar, clutter from features like the ground, water, or weather tends to be stationary relative to the radar, so their returns have little or no Doppler shift. MTI uses rapid, successive radar pulses and Doppler processing to cancel or suppress these zero-Doppler (stationary) returns, effectively high-pass filtering in Doppler. Moving targets, on the other hand, have Doppler shifts and survive this processing, standing out against the quieter background. That’s why the goal is to attenuate stationary clutter to reveal moving targets.

So the best description is: attenuate stationary clutter to reveal moving targets. This approach doesn’t imply it only works with fixed targets, it doesn’t aim to increase clutter, and it doesn’t cancel moving targets to create a background.