The Design And Applicaton Of Real-time Control System In RFSS

RF simulation real-time control system in this paper uses RTnet real-time network based on Real-Time-eXention(RTX) and VMIC card. And this control system is divided into non-real-time part and real-time part..In non-real-time part, this paper uses MFC programming, and according to the main-control computer software's requirements, completes main-control computer software interface and 12 sub-control computer software interfaces, and achieves communication and remote control between the main-control computer and the sub-control computers.In real-time part, this paper combines RTX and C language to achieve real-time main-control computer software and array control computer software. The real-time main-control computer achieves real-time data storage and forwarding function, which is the interface of real-time part and non-real-time part. Array control software's function includes real-time data reception, near field correction, the antenna array's coarse control and fine control, iterative lookup and other functions. What's more, this paper derived taget location formula. And according to a large number of tests, we find and sum up the law, and give a new near-field correction algorithm. And this algorithm makes the tracking accuracy greatly improved.In addition, according to the link power loss calculation between signal source (or target simulator) output and the array antenna input, the paper gives the target channel and interference channel design and discusses the design of the link control system.Finally, this paper does the software test for the system communication delay and data processing delay, then does the real-time and reliability testing for the entire control system. A large number of test results show that the control system has good real-time performance and reliability.