Howtosignalprocessing
- What is the frequency modulated continuous wave FMCW radar?
- What is the range of FMCW radar?
- What's the difference between FMCW and CW radars?
- How to generate FMCW signal in Matlab?
What is the frequency modulated continuous wave FMCW radar?
A Frequency Modulated Continuous Wave Radar or FMCW Radar system is a special type of radar system that measures both distance and velocity of moving objects. This is achieved by continuously varying the frequency of the transmitted signal by a modulating signal at a known rate over a fixed time period.
What is the range of FMCW radar?
Frequency Modulation is used in FMCW radar. FMCW radars use mm wave electromagnetic spectrum which has very short wavelengths upto 4 mm [9], [10]. The frequency used is in range of 76–81 GHz. Higher frequencies are used so that even smaller objects can be detected effectively.
What's the difference between FMCW and CW radars?
The CW radar can measure the Doppler frequency of the target, but it cannot measure the target range. The frequency-modulated CW radar (FM–CW) can measure both the range and Doppler frequency of the target.
How to generate FMCW signal in Matlab?
Create an FMCW signal. Fs = 2e5; Tm = 0.001; hwav = phased. FMCWWaveform('SampleRate',Fs,'SweepTime',Tm); xref = step(hwav); Dechirp a delayed copy of the signal.
