Design a modulator and demodulator SSB by DSP processor TMS320C50 for PLC systems

One of the most important parts of the data transmission systems is processing of the signals. In the primary models of this system, all these processes were done in an analog format. Because of this, the volume and the price were high. But in this model of system, however, all the processes are done digitally in which case the precision is high and also it contains all the abilities of the digitized systems. Some of the major changes in the structure of the system are: low cost, high precision, flexibility, etc. The main purpose of this paper is analyzing base band processes, HF modulator and SSB demodulator by the TMS320C50 processor. In this respect, the importance of the processor, its place and its operation is described and then a brief note is made on the TMS320 DSP processors made by Texas Instruments (TI) company and on the more important aspects of these processors. Following this is the analysis of the base band digital processor block diagram and the block diagrams of the digital process of the transmit (VF, HF) path. The block diagrams of the receive (VF, HF) digital process is then described and also the block diagram of the SSB demodulator by the TMS320C50 processor. Lastly there is the conclusion of this paper.