It explains the basics of DSBSC and SSBSC and mentions useful differences between terms. DSB-SC stands for Double SideBand Suppressed Carrier and SSB-SC stands for Single SideBand Suppressed Carrier.

Both of these are modulation techniques used in AM(Amplitude Modulated) frequency spectrum. As shown in AM spectrum carries Wc (Carrier), Wc-Wm (Lower Side Band), and Wc+Wm (Upper Side Band) signal components.