Akademik Veri Yönetim Sistemi
ICAT 2022, İstanbul, Türkiye, 25 - 27 Kasım 2022, ss.145-148
Software Defined Radio (SDR) systems have become a fascinating technology with the extensive usage of digital communication systems in recent years. SDR offers users to use some programmable communication system functions on computers instead of using some traditional hardware such as modulators, demodulators, filters, amplifiers, and detectors. SDR provides an easy-to-change, flexible, low-cost communication system design to its users by reducing the cost of hardware maintenance and using the same hardware to develop some different functions. SDR systems are designed by means of software named GNU Radio. GNU Radio is used to program some reconfigurable hardware provided by SDR systems over the air. Real-time video transmission systems encode and modulate the digital video signal to reduce the amount of data for representing the input signal in the transmission process. In this study, an SDRbased real-time video transmission system is simulated. This system is designed on a laptop containing GNU Radio software. A digital video signal is modulated with four different modulation schemes in this software. Artificial Gaussian noise having different amplitudes is added to the video signal to measure the noise robustness of these schemes. Lastly, FFT plotting for five different SNR values are drawn by a GNU Radio block to show the relation between FFT plotting and SNR values.