Creation of special technical means on the basis of SDR devices

Abstract

The article is devoted to the review of possibilities of creation of special technical means on the basis of SDR devices and principles of construction of transceiver devices which have a possibility of use at performance of various tasks and the purposes. The principles of construction of SDR devices and their features are considered in the article. When creating special hardware, the basic principle is a flexible architecture that can be changed with the help of software. This allows to organize communication between two or more different types of devices, for example, to switch between communication channels and change the type of modulation. When using SDR devices, it is possible to significantly simplify the technical part. The hardware platform can be quickly reprogrammed to support new communication and data exchange standards. Digital signal processing provides greater speed and it is easier to maintain than other analog systems. It is noted that the SDR receiver is a universal device that can combine the functions of various radio devices. Following the concept of SDR, the author concludes that the ideal SDR receiver should contain as few elements as possible, while an important factor in the use of SDR devices is the replacement of most analog components. It is emphasized that devices that are built on an analog element base have a much higher complexity of design than SDR devices and do not have the flexibility required in today’s conditions of rapid change in communication standards.