Line Plot from Scientific Research

Steps of signal demodulation. (i) Original signal F ( ω 0 − ω m ). (ii) Static DC background signal 〈 F ( ω 0 − ω m )〉. (iii) Subtracting the original signal from the DC background. (iv) Normalizing the signal by the carrier DC background 〈 F ( ω 0 )〉. (v) Fourier transform (FFT) to identify δ ( z 0 ) and δ ( z 0 − 2 z m ). Both the real part (red line) and the imaginary part (blue line) of the amplitude plots are shown.

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