What is the operational characteristic of a pulse Doppler radar system?

What is the operational characteristic of a pulse Doppler radar system?

• A. It detects only velocity
• B. It tracks on a velocity basis
• C. It detects and tracks on a velocity basis
• D. It detects and tracks on a range basis

Answer: (C)

Pulse Doppler radar hinges on Doppler shift to measure target velocity, while the pulse timing provides range. This combination lets the system not only detect targets but also form and maintain tracks primarily using velocity information. The Doppler measurements create a velocity history that defines the track, and clutter can be suppressed by focusing on moving targets with nonzero Doppler shifts. Range data still comes from the time delay of the returned pulse, but the tracking process itself is driven by velocity information rather than range alone. That’s why the best description is that it detects and tracks on a velocity basis.

Pulse Doppler radar hinges on Doppler shift to measure target velocity, while the pulse timing provides range. This combination lets the system not only detect targets but also form and maintain tracks primarily using velocity information. The Doppler measurements create a velocity history that defines the track, and clutter can be suppressed by focusing on moving targets with nonzero Doppler shifts. Range data still comes from the time delay of the returned pulse, but the tracking process itself is driven by velocity information rather than range alone. That’s why the best description is that it detects and tracks on a velocity basis.