Design And Implementation Of Data Bus In The Controller Pilot Data Link System

The data link is an operational system that transmits real-time digital information in accordance with fixed message formats and communication protocols.Through closely linking to the command and control systems,the data link is able to effectively acquire and optimize operational resources and weapon platforms,and to monitor the real-time battlefield situation.As a result of that,the data link can maximize the cooperative capability and operational effectiveness among weapons.As a typical application of data link technology in the military,the missile-borne data link is an intermediary to link the launch platform and missiles,command and control centers,and missiles,missiles and other missiles.It is also one of the effective measures to strengthen the penetration capability missile,reduce the probability of interception,and improve the accuracy of strikes.As the missile-borne data link needs to undertake the increasingly arduous operational tasks in information-based wars,it is required for the data link to carry more complex observation instruments and information processing equipment.Through the application of the data bus,the connection between discrete instruments and devices on the data link can be greatly simplified to improve the reliability and real-time performance of the system.After several decades of development,many different data buses such as the Space Wire bus,IEEE1394,and MIL-STD-1553 have emerged at home and abroad.Among them,the MILSTD-1553 B bus is a data bus characterized by command based on time-division system/responsive multi-path transmission.Because of its outstanding advantages such as good flexibility,fault-tolerance,and expandability,it is widely used in fighter aircraft,missiles,international space stations,artificial satellites,tanks,warships,and other military fields.This project takes the data link control system of an aviation model development project as background to conduct hardware design and software design for the two kinds of 1553 B terminals involved in the system.Firstly,it reviews the development and status quo of the1553 B bus,conducts intensive discussion on the protocol content,hardware equipment and characteristic advantages of the bus,and elaborates on the two communication types and four message formats used in the data link control system.Secondly,this project uses "FPGA +JBU64843" as the hardware architecture of the data link control system in accordance with the project requirements and applies Cadence software to complete the hardware schematic design of the data link controller 1553 B bus module and ground test equipment 1553 B bus interface board.Thirdly,according to the project’s fixed communication transmission plan,and combined with the top-down design philosophy,the working process and algorithm block diagrams of the bus controller(ground test equipment)and remote terminal(data link controller)in the system are highlighted.Each module was Veriolog HDL program design and behavioral level simulation to verify the correctness of the program function through analyzing the simulation results of Modelsim.Finally,system unit test and complete machine test are carried out to verify the real-time performance and reliability of the 1553 B bus in the data link.Through the verification,the data link controller based on the 1553 B bus meets the expected data transmission requirements,so it can be applied to engineering practice for the actual status...