Short-wave digital signal processing method and module based on space-time coding

The invention discloses a short-wave digital signal processing module based on space-time coding. The module comprises a space-time coding digital signal processing module, a filtering module, a radio-frequency amplifying module, a display control module, a radio-frequency detection module and a power supply module, wherein the display control module is used for controlling the display state of the coding digital signal processing module; an audio signal is input from the input end of the space-time coding digital processing module; the digital signal treating module is a module for performing PCM (Pulse Code Modulation) coding on the audio signal, and converting into a digital signal, performing constellation labeling and STBC (Space Time Block Coding), modulating into four paths of short-wave radio-frequency signals, outputting four paths of radio-frequency signals through an up-conversion and filtering module, amplifying each path of radio-frequency signal by 20dB through the radio-frequency amplifying mod