Multi-target aircraft networking measurement and control method based on TDD time-frequency multiple access
A measurement and control method and aircraft technology, applied in network topology, radio transmission system, electrical components, etc., can solve the problems of power control research, inflexible time and frequency resources, lack of synchronization, etc. The effect of simplifying time synchronization requirements
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[0072] figure 1 For system time-frequency resource planning, the system frame duration T U +T D +T G =200ms, the system bandwidth requirement is max{B U ,B D}. The duration of the system frame including the uplink remote control frame is T U , the bandwidth is B U , the duration of the downlink telemetry frame is T D , the bandwidth is B D , and the system frame guard slot T G , where the uplink remote control frame is occupied by one ground station, and the downlink telemetry frame is shared by multiple aircraft.
[0073] Bandwidth B of downlink telemetry frames D = 150kHz is divided into 5 bandwidths B of different sizes by multiple aircraft m = 10kHz. Among them, the first bandwidth B m = 10kHz is further divided into 5 time slots D in time m,u . The system has a total of 25 time slot resources, and each aircraft can only occupy one time slot within the system frame duration of 200ms. The aircraft capacity of the system is thus 25.
[0074] figure 2 Shown...
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