Howtosignalprocessing
- How does FMCW radar measure range?
- What is the radar range equation?
- How do you calculate radar distance?
- Which block is present to getting the value of range and Doppler velocity in FMCW radar?
How does FMCW radar measure range?
FMCW radar systems measure the frequency difference (Δf, due to run time) between the transmitted and received echo signal for calculating the distance, and it also measures the Doppler frequency (due to the Doppler effect) for calculating the speed of the object.
What is the radar range equation?
kTB = -174 dBm/Hz
The radar range equation above can be written for power received as a function of range for a given transmit power, wavelength, antenna gain, and RCS.
How do you calculate radar distance?
Distance is determined by measuring the time it takes for the pulse to make a round trip from the radar to the target and back using the relation distance = (time) * (velocity). The velocity is the speed of light, the speed at which the pulse travels (c).
Which block is present to getting the value of range and Doppler velocity in FMCW radar?
Switched Frequency Counter − It is useful for getting the value of Doppler velocity. Average Frequency Counter − It is useful for getting the value of Range.
