SDRs Grow As Flexible Communications Devices

摘要

Software-defined radio (sdr) technology is entrenched in many military applications, but has also made its mark in commercial applications, notably in amateur-radio and short-wave-radio markets. The radio approach, which employs digital signal processing (DSP) in place of functions formerly handled by analog hardware, offers the potential for flexible interoperability among many different existing radio platforms as well as the capability of defining and changing (when necessary) custom waveforms to maintain high levels of security in tactical communications.