Innovative demodulation method for SSB technique

A single sideband (SSB) demodulation method is described, in which frequency mixing is not required. The proposed method is based on the phase shift method, but no local oscillator is employed. The IQ demodulator is replaced with an envelope detector and an FM demodulator. It can replace the synchronous demodulation method, which requires an expensive phase-locked loop for carrier recovery. Not only is less interference encountered in the proposed circuit, but the production costs of the SSB and independent sideband receiver are low. Furthermore, the Doppler effect is not a serious problem since the carrier transmitted by the transmitter is used for demodulation