Research And Simulation Of The UAV’s Nboard Communication System Based On TTNT

In the highly-developing modern world, the protection of co-fighters has been moreand more concerned about, so to induce the casualties in fighting has been agreatly-chased target amony all the countries in the world(final target: zero casualty).And since the very beginning of the twentieth century, people have kept the eyes on theunmanned aerial vehicles, which compared with the manned, have distinctadvantages-nice loading capability, low manufacturing cost, great maneuveringcharacteristics, low flying environment requirement and so on. During a comission, theunmanned don’t have to execute the assignments at the same time, whosecomminucation systems would complete the communication assignments. Besides,people meanwhile care for the highly effective and safe data-transfering. In thechanging and ill modern battle field, full of deliberate interferences from the enemiesand extreme dangers, people require more of communication systems on the unmannedaerial vehicles.This thesis has a great reference to literatures and the writer deeply studies theTactical Targeting Network Technology(TTNT) from the American army. Taking thistechonology as a reference, the writer originally designs an unmanned aerial vehiclecommunication system. This system adopts wireless identity-verification, frequencymodulation, spread spectrum technologies to interfere and protection. The writer alsocarefully designs the imformation-accessing and TSA Time Slot Allocation. Accordingto the original dynamic TDMA, the writer developes a priority-level Update Algorithmdynamic TDMA. The new one can make the Time Slot more balanced, givingconsideration to the original priority-level. The writer adopts Ad hoc net work withaccordance to the characteristics of the unmanned aerial vehicle and cluster topologybecause of the net hight capability. As the empoldering and the trial of the unmannedaerial vehecles communication systems is a long, time and human resources andmaterials-consuming course, it is unpractical to experiment on real thing. What’s more,to collect actual datas is rather difficult, so adopting analogue communication systems isgood to test accomplishment which is comparely convenient. This writer adopts OPNET simulation software with accordance to the designed communication system theory, andelaborately constructs the unmanned aerial vehecle model. According to differentpurposes, the writer constructs two simulation scenes and during which the wirtercollects correlative simulation datas such as throughput, imformation-accessing delay,node-inserting delay and etc and picks up and analyses the data. Comparing with theTTNT technology, the writer discusses the advantages and disadvantages of thedesigned communication system.The indexes in this thesis are from the TTNT study whose advanced datas are veryhelpful to the development of China’s data chaining systems.