Which radar type is associated with velocity-based target detection and tracking?

Which radar type is associated with velocity-based target detection and tracking?

• A. Pulse Doppler radar
• B. Pulse radar
• C. Continuous Wave radar
• D. Synthetic Aperture radar

Answer: (A)

Velocity-based detection relies on the Doppler effect: a moving target shifts the frequency of the returned signal in proportion to its speed toward or away from the radar. A pulse Doppler radar sends pulses and then analyzes the echoes over many pulses to extract that Doppler (velocity) information while also determining range from the round-trip time. This combination lets the system detect targets that are moving and separate them from stationary clutter, and it supports tracking by updating velocity and position over successive scans. Other radar types either focus on range from pulse timing without Doppler processing, measure velocity with a continuous wave signal but can’t resolve range, or are designed for high-resolution imaging rather than velocity tracking. That blend of Doppler-based velocity measurement with range information and tracking is what defines pulse Doppler radar.

Velocity-based detection relies on the Doppler effect: a moving target shifts the frequency of the returned signal in proportion to its speed toward or away from the radar. A pulse Doppler radar sends pulses and then analyzes the echoes over many pulses to extract that Doppler (velocity) information while also determining range from the round-trip time. This combination lets the system detect targets that are moving and separate them from stationary clutter, and it supports tracking by updating velocity and position over successive scans. Other radar types either focus on range from pulse timing without Doppler processing, measure velocity with a continuous wave signal but can’t resolve range, or are designed for high-resolution imaging rather than velocity tracking. That blend of Doppler-based velocity measurement with range information and tracking is what defines pulse Doppler radar.