The primary function of RADAR and LiDAR sensors is to

The primary function of RADAR and LiDAR sensors is to

• A. Detect color
• B. Measure distances
• C. Determine weather
• D. Capture audio

Answer: (B)

Measuring distances to objects is the primary function of radar and LiDAR. Both sensors emit signals—radio waves for radar and laser light for LiDAR—and determine how long it takes for those signals to bounce back from objects. From that time, they calculate the distance to each object, giving the drone a map of what’s around it. This distance information is crucial for safe navigation, obstacle avoidance, and building a 3D representation of the environment. They aren’t designed to detect color, determine weather, or capture audio—their strength lies in precise range measurement and, for radar, sometimes speed information as well.

Measuring distances to objects is the primary function of radar and LiDAR. Both sensors emit signals—radio waves for radar and laser light for LiDAR—and determine how long it takes for those signals to bounce back from objects. From that time, they calculate the distance to each object, giving the drone a map of what’s around it. This distance information is crucial for safe navigation, obstacle avoidance, and building a 3D representation of the environment. They aren’t designed to detect color, determine weather, or capture audio—their strength lies in precise range measurement and, for radar, sometimes speed information as well.