Demir A., Çevikalp H.

ICAT 2022, İstanbul, Turkey, 25 - 27 November 2022, pp.268-271

  • Publication Type: Conference Paper / Full Text
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.268-271
  • Eskisehir Osmangazi University Affiliated: Yes


Unmanned Aerial Vehicles have been used in some different areas such as agriculture, traffic control, disaster monitoring, and border surveillance for useful information transmission between two devices recently. These devices use some easily changeable SDR (Software Defined Radio) systems for real-time video transmission. Since SDR systems let the users define some software functions for traditional dedicated hardwares, they do not have to spend more than enough time, effort and money. SDR systems are implemented by some signal processing blocks of GNU Radio software. It is free and open source. It uses a low cost external RF hardware named HackRF One to realize some real-world communications systems. This hardware transmits and receives the radio signals in a frequency range. Since this frequency range is not enough for high data rate video transmission operations, video compression on obtained raw real-time video is applied by Gstreamer. Gstreamer is a media processing framework having some open source media processing libraries. Because a good modulation is another solution for high data rate video transmission in a narrow band system, obtained digital video data is GMSK (Gaussian Minimum Shift Keying) modulated by GNU Radio software.  This study provides the users transmitter and receiver side GNU Radio flow graphs, and shows how the transmission parameters are selected for a good wireless video transmission.