What is the purpose of a clutter map in radar data processing?

• A. To visualize and manage known clutter locations on the display
• B. To generate additional weather echoes
• C. To convert data to color
• D. To measure target speed

Answer: (A)

A clutter map serves as a reference of known clutter locations on the radar display. By marking where persistent clutter (like ground or sea clutter) is expected, the radar processor can suppress or downweight returns from those areas, reducing false targets and keeping real targets more visible. This helps keep the display clean and the detection reliable, especially in zones with steady clutter. It isn’t used to generate weather echoes, convert data to color, or directly measure target speed.