Wideband, intelligent and integrated HF communications

The high-frequency (HF) communication, commonly covering the frequency range between 3 and 30MHz, is an effective and important long-distance communication approach. Using the ionosphere as a natural high altitude reflector, trans-horizon HF radio transmission is possible with advantages such as high mobility, convenient deployment, strong survivability and fast network reconfiguration. It finds widespread applications in various fields including military and emergency communications, and communication in remote regions and humanitarian projects.