High frequency electronic circuits. Solve

DSB stands for double-sideband (double)

ssb stands for single-sideband (single)

The signal can only be emitted with these two modulations in order to improve the utilization of the signal band and save energy (if AM wave is used, the sum of the upper and lower sideband power accounts for only 1/3 of the output power)

Commonly used methods to realize DSB are: Diode Balanced Amplitude Modulation Circuit, Diode Ring Amplitude Modulation Circuit, Analog Multiplier Amplitude Modulation Circuit

While SSB is generally generated by: filtering method, phase shifting method, and phase shifting filtering method