This article shows the analysis of Vestigial Side Band Suppressed Carrier demodulation.
I have understood the mathematical derivation up to eq (1). However, I am unable to understand which components in eq (1) are to be retained and which are to be filtered out and the reasoning behind it. I understand that in VSBSC modulation, along with one sideband, some portions of the other sideband (vestige) are also included while transmitting.
Please help me understand, which terms are to be retained and which terms are to be filtered out in case of Vestigial Side Band Demodulation.