VSAT remote station baseband equipment data processing method based on encryption and decryption

The invention discloses a VSAT remote station baseband equipment data processing method based on encryption and decryption. Data conversion is performed on intermediate frequency input data by four paths of parallel modulator-demodulators by adopting a TPC code, and data generated via conversion are stored in a database server; classification is performed in the database server and the data are outputted to a decryption machine to be decrypted; the decrypted data are outputted to a classification terminal server in which identifiable telephone voice, IP data, IP voice or fax data are generated; and telephone voice, the IP data, IP voice or the fax data are encrypted via an encryption machine and then integrated into frames via the modulator-demodulators and outputted. The intermediate frequency input data are processed into telephone voice, the IP data, IP voice or the fax data which can be identified by users so that available and important data can be timely analyzed by remote station work personnel, security of data transmission is also guaranteed and thus information divulgence is avoided.