(In May 1992, JoeMitola first proposed the concept of "software Radio" (SR) at the American Telecom System Conference. IEEEComm.Magazine officially launched the first software radio collection in the fifth issue of 1995, which set off the research of software radio. upsurge. The emergence of software radio technology is the third transformation in the communication field after fixed communication to mobile communication and analog communication to digital communication.)
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