The Study On Realization Of CDMA Base-band Signal Based On DSP

This paper introduced the evolution course of the signal generator and thedevelopment of the Software Radio technology, studied the feasibility applying theSoftware Radio technology to the signal generator. This paper mainly studied the channel structures of the forward link in the CDMAcellular communication system based on the IS-95 standard and the generator process ofthe CDMA base-band signal based on the IS-95 standard. Based on above theoretical basis, this paper designed the data source generator, theCRC encoder, the convolution encoder, the block interleave, the scrambler, the Walshgenerator, the PN code generator, the base-band filter, etc. Finally, the CDMAbase-band signal generator based on the IS-95 standard was carried out on theTMS320C6711 DSK hardware platform. It was measured in the time domain andspectrum domain with satisfactory results.