Main Characteristics of Software-Defined Radio (SDR)
The main characteristics of Software-Defined Radio (SDR) can be summarized as follows:
(1) High Flexibility
SDR can easily add new functions by incorporating additional software modules. It is capable of communicating with any other radio system and can serve as an RF relay for other radios. Software modules can be updated or modified via over-the-air programming. To reduce costs, users can selectively enable or disable software modules based on functional requirements.
(2) Strong Openness
Thanks to its standardized and modular architecture, the hardware of an SDR system can be updated or expanded alongside advancements in components and technology. Similarly, its software can be continuously upgraded as needed. SDR is not only compatible with new-generation radio systems but also supports legacy systems. This dual compatibility extends the service life of older radio equipment while ensuring that the SDR platform itself remains viable and relevant for an extended period.
