Research And Development Of MAV Airborne Transceiver

Today, the Micro-aviation-vehicle (MAV) is playing an indispensable role in both safeguarding national security and offering civil services. Its advantageous characteristics of being small in size, light in weight and low in power consumption make it very suited to military campaign, civil prospecting and other fields. In the meantime, the MAV airborne transceiver, as the major transmission and communication vehicle for remote-controlled data and image data of the micro-aviation-vehicle, has become one of the key research targets for the development of MAV.This thesis presented here displays and illustrates the semi-duplex MAV airborne transceiver designed independently by the author. The weight of this MAV airborne transceiver is required to be no more than 15g, with its transmission distance reaching 3 to 5 km and receiving sensitivity -110dBm at the code velocity of 38.4kbps. The whole system adopts the FSK signal modulation mode and the transmission center frequency and maximum code velocity are set at 915.2MHz and 170kbps respectively , which satisfies the demands of MAV.The author begins this thesis by reasoning on the technical index of the MAV airborne transceiver and estimating its power consumption, weight, size and transmission distance based on the choice of its chip. It is followed by the designing scheme of the MAV airborne transceiver in which part the author shows the hardware design of circuit and the software design of the major controlling parts of the system through theoretical argumentation. In concluding this thesis, the author presents a brief introduction to the ways of shakedown testing of the hardware, provides part of the results in this respect and proposes future work and thoughts for improvement based on the summarization of the whole thesis.