Physical principles of work and basic features of Universal Software Radio Peripheral

Abstract

The current stage in the development of info communication systems is characterized by an active search for a solution to the problem of signal processing in dynamically changing conditions. Growing requirements for bandwidth implemented in practice lead researchers to search for new solutions that can work under restrictions previously considered fundamental, such as a high level of intersymbol distortions [1]. There are many useful signal recognition techniques that use a statistical apparatus, an apparatus for predicting dynamic processes, and means combining the features of different principles. Ensuring the reception of signals transmitted over the meteor channel of a radio communication requires, in addition to modern analog-to-digital conversion devices, the ability to directly synthesize precision signals for heterodyning systems, correlation analysis and statistical processing of a signal-noise complex. Similar problems arise in more traditional applications, such as radar and radio navigation. The most preferred tools of the developer and designer in all cases are devices that implement the technology of software-defined radio (SDR). The article describes the physical principles of Universal Software Radio Peripheral operating using software-defined radio (SDR) technology. It shows the implementation of the technology of software-defined radio system according to the concept of USRP for various tasks, architecture and generalized structure.