Short-wave two-path modulator-demodulator

The invention discloses a short-wave two-path modulator-demodulator, which comprises two paths of modulators and two paths of demodulators, wherein in the two paths of modulators, one path of modulator comprises a convolution code unit, a first waveform generating unit, a first phase shift keying (PSK) modulation unit and a first waveform shaping unit, which are connected in sequence; the other path of modulator comprises a data modulation unit, a second waveform generating unit, a second PSK modulation unit and a second waveform shaping unit, which are connected in sequence; in the two paths of demodulators, one path of demodulator comprises a low-pass filter unit, a first interference suppression unit, a first time domain equalization unit, a first PSK demodulation unit and a first convolution decoding unit, which are connected in sequence; and the other path of demodulator comprises a band-pass filter unit, a second interference suppression unit, a second time domain equalization unit, a second PSK demodulation unit and a second convolution decoding unit, which are connected in sequence. According to the short-wave two-path modulator-demodulator, the rate is improved, namely under the condition of certain channel quality, the communication data transmission rate is doubled. The short wave two-path modulator-demodulator has the advantages of improved performance, good compatibility, multiple functions and wide application scope.