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== What is Frequency domain signal ==
The frequency domain signal is the result of applying the FFT to one ramp modulation interval of the 2048 sampled IF radar signal captured samples captured.<br>
The radar application takes the samples of one single ramp and completes the rest with zeros (padding) completing 2048 samples, and it performs the FFT over these 2048 samples, resulting on the spectrum of the signal with 2048 points resolution.
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<br> [[Image:WEB-FFT3mB.jpg]]<br> Following our example, the above picture shows the FFT of the measurement. Y axis represents signal strenght and X axis represents the FFT sample. Note that only the 300 first samples are shown. We can see a dominant peak centered about sample number 13.