The Application Research Of Wireless Communication Technology Between Unmanned Aerial Vehicle And The Buoy On The Sea

Wireless communication system between unmanned aerial vehicle and the buoy on the sea is a high-speed and wide-band long range communication system. The system basic function is to obtain the buoy data in real-time. The system can do marine science research,fish environment research and marine military environment observation.In order to realize signal transmission between unmanned aerial vehicle and buoy with long distance and small power. The analysis of air-sea communication channel character,the establishment of air-sea communication channel and the research of wireless communication system of the paper are finished between unmanned aerial vehicle and the buoy on the sea. In the influence of tertiary sea environment conditions, multi-path effect and doppler effect.The interferences are analyzed firstly caused by air-sea channel condition and the communication distance to establish system channel model.A new wireless modulation system based on Direct Sequence Spread Spectrum of the paper is proposed, the system can complete collection of data from the buoy in ten minutes.The system bit-error rate less than 10-5. In order to fulfill the request of system.The carrier modulation by DQPSK is designed because of the buoy baseband data rate is 4800bit/s of buoy. Finally, in order to decrease the bit-error rate of system. The system optimized by using convolution code technology. Feasibility of system is simulated by simulink.Embedded environment detection system on-sea is designed on drone for controlling platform to collect information all around. Environment detection system on-sea system analysis and process data by using data controller and embedded control unit. How the GUI is designed on Qt of the paper is described in detail.and complete the design of the diagram of hardware circuit...