The UAV multi-output multi-output (MIMO) data link technology is a new UAV measurement and control data link system. It simultaneously configures multiple transmit and receive antennas on the ground control station and the drone to change a single information channel. It has become a plurality of independent and parallel information channels, and each sub-channel capacity can reach the waveform of the single-input single-output (SISO) of the drone, which can be independently controlled.
Apply MIMO technology to the UAV data link to build a MIMO-based UAV data link. The main advantages are:
(1) Increase the information transmission capacity.
(2) Reduce the probability of interception.
(3) Enhance anti-interference ability.
(4) Improve the adaptability of tasks.
In order to give full play to the application of MIMO technology in the UAV data link, the main research directions include:
(1) Further study of MIMO antenna layout. When the number of antennas is large, the spatial layout of the antennas is various, and thus the spatial correlation matrix is ​​also diverse, and the corresponding MIMO capacity is also quite complicated.
(2) Research on signal processing in MIMO systems. Combined with the application advantages of MIMO technology in the data link of UAV, the problem of selecting codec strategy and improving the anti-jamming performance of UAV is studied under the condition of multiplexing gain and diversity gain.
(3) Research on anti-interference and monitoring technology of MIMO data link.
(4) Construction of MIMO data link experimental platform.
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