Sample rate conversion for software radio

Software radio terminals must be able to process many various communication s standards. These standards are generally based on different master clock rates and thus employ different bit/chip rates. The most obvious solution t o cope with the diversity of master clock rates in one terminal is to provi de a dedicated master clock for each standard of operation. Not only too co stly, this kind of solution limits the applicability of a realized terminal . Hence, it is much more elegant to run the terminal on a fixed clock rate, and perform digital sample rate conversion controlled by software.