A Development of DDS Based Chirp Signal Generator and X-Band Transmitter-Receiver for Small SAR Sensor

DDS 기반의 소형 SAR 시스템 송수신장비 개발

  • Received : 2015.10.21
  • Accepted : 2016.02.04
  • Published : 2016.03.31


UAVs(Unmanned Aerial Vehicle) can be used in variant fields fornot only combat, but also recon, observation and exploration. Moreover, UAVs capacity can be expanded to impossible missions for existing surveillance system such as SAR(Synthetic Aperture Radar) technology that collecting images from all weather conditions. In recent days, with development of highly efficient IC and lightened system technology, there are significant increase of researches and demands to make SAR sensor as a payload of UAV. Therefore, this paper contains development process and results of small signal generator and RF device as a core module of SAR system based on the digital device of DDS.


Unmanned Aerial Vehicle;SAR;Chirp Pulse;Direct Digital Synthesizer;FPGA


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Supported by : 한국항공대학교, (주)에스아이에스(SIIS)