Which type of radar provides velocity information about targets?

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

Answer: (C)

Velocity information comes from Doppler processing, which detects the frequency shift of the returned signal caused by the target’s motion toward or away from the radar. A pulsed radar primarily determines range by measuring how long the pulse takes to return, but by itself doesn’t extract velocity. A continuous-wave radar can retrieve velocity via Doppler shift, but it cannot determine range because there’s no time reference. Pulse Doppler radar combines pulsed operation with Doppler processing, so it can measure both range and the Doppler shift, yielding the target’s velocity (usually the radial component) along with range data. Synthetic aperture radar focuses on high-resolution imagery, not velocity measurement. So the type that provides velocity information about targets is Pulse Doppler radar.