Research And Implementation Of Transmission Technology In HF Burst Waveform

The key technologies in transmitting and receiving of Burst-Waveform on the 3G HF communication is researched in this thesis, and the data transmission scheme is tested on the DSP hardware platform.The sending scheme is analyzed, and the receiving scheme is designed in the thesis. The effects of noise, Doppler shift and multipath in the HF channel are taken into consideration, some key technologies are adopted in the schemes, for example, siding subsection correlation-FFT technique, correlation-FFT and Conic fitting techniques, and ideas of Rake. The system scheme is simulated by using MATLAB software, and the results show that the performance requirements are achieved.Based on the simulation by MATLAB, the implementation of the system scheme of DSP software is researched in detail on the hardware platform, SEED-DEC6713. The research includes baseband algorithms processing and implementation of transceiver functions on hardware platform. Finally, the implementation of this system by DSP software is tested on channel simulator, and the results show that the burst waveform data transmission scheme meets the performance requirements of MIL-STD-188-141B protocol.