Software Defined Radio Software Trends

摘要

For the past several years, a technical innovation, namely Software Defined Radio (SDR), has been maturing to support the wireless communications transformation underway in the U.S. Department of Defense. The demand for this communications evolution is ultimately driven by the need to support Network Centric Operations (NCO).rnSoftware defined radios are radios that can be dynamically reprogrammed by the installation and execution of software applications. In this regard, they are somewhat analogous to personal computers. Much like a personal computer, the user of an SDR can acquire a multitude of supported applications, install and execute those applications on the radio, and thereby transform an SDR into the communication system required by the user's situational demands. Depending on the hardware making up a particular SDR, this re-programmability allows a single SDR to operate across a wide range of frequencies using a wide array of modulation technologies.