Howtosignalprocessing
- How does radar detect a target?
- What are used into radars in finding the range of targets?
- What is radar pulse method?
- How does a pulsed Doppler radar work?
How does radar detect a target?
RADAR is fundamentally an electromagnetic sensor used to detect and locate objects. Radio waves are radiated out from the radar into free space. Some of the radio waves will be intercepted by reflecting objects (targets). The intercepted radio waves that hit the target are reflected back in many different directions.
What are used into radars in finding the range of targets?
Radar typically involves the radiating of a narrow beam of electromagnetic energy into space from an antenna (see the figure). The narrow antenna beam scans a region where targets are expected.
What is radar pulse method?
A pulse-Doppler radar is a radar system that determines the range to a target using pulse-timing techniques, and uses the Doppler effect of the returned signal to determine the target object's velocity.
How does a pulsed Doppler radar work?
In pulse Doppler radar, the range is estimated by binning the returns of the individual pulses by their time of arrival, which is proportional to the range. The Doppler processing is done by coherently measuring the phase shifts across many pulses. In this way, both range and velocity of targets can be determined.
