Design of Real-Time Hardware-in-the-Loop TV Guidance System Simulation Platform

Abstract

This paper presents a novel design of a real-time hardware-in-the-loop (HIL) missile TV guidance system simulation platform, which consists of a development computer, a target computer, a turntable, a control cabin, and a joystick. The guidance system simulation model is created on the development computer by Simulink® and then downloaded to the target computer. Afterwards, Simulink Real-Time™ runs the model in real-time. Meanwhile, the target computer uploads the real-time simulation data back to the development computer. The hardware in the simulation loop is TV camera, encoders, control cabin, servomotors, and target simulator. In terms of hardware and software, the system has been simplified compared with the existing works. The volume of the turntable integrating the target simulator and the seeker simulator is about 0.036 cubic meters compared to the original 8 cubic meters, so it has a compact structure. The platform can perform the closed-loop control, so the simulation has high precision. Taking the TV guidance simulation as an example, in the case of target maneuvering, the final miss distance of the TV guidance missile is 0.11812 m, while the miss distance of the original system is 13 m. The trajectories obtained from the HIL and mathematical simulations substantially coincide. So the simulation results show that the proposed HIL simulation platform is effective.

Development of an educational interactive hardware‐in‐the‐loop missile guidance system simulator

“…In this study, the target is subjected to multiple step maneuvers as shown in Figure . Therefore, relative to the case of constant maneuvering of the target in Reference , the validity of the TV guidance technology is further verified.…”

“…According to Reference , the signal flow of the HIL real‐time simulation system is illustrated in Figure . The operator can build the simulation model by Simulink installed on the development computer.…”

“…The SCM, 5 V and 9 V regulators, an encoder signal preprocessing module, a motor speed conditioner and a 68 pin interface for PCI 6601 revealed in Figure 4 are integrated on a printed circuit board (PCB) which is assembled in the servo cabin. According to Reference [6], the signal flow of the HIL real-time simulation system is illustrated in Figure 5. The operator can build the simulation model by Simulink installed on the development computer.…”

“…In order to make the relationship between the instruments and the model more clearer, the layout element (a picture box here) is added in the interactive instrumentation. A picture of the motor control model described in Reference [6] is used in this study for showing which signals the instruments are bound to. In this experiment, students firstly create the motor control model in Reference [6] by using Simulink installed in the development computer.…”

“…However, to the authors' best knowledge, there has not been any detailed real-time HIL simulation using the interactive instrumentation of Simulink® Real-Time™ for aerospace engineering. Therefore, in this paper, a HIL simulation system called HIL-GSS is designed and developed for HIL Guidance System Simulation, which extends the use of the real-time HIL TV guidance system simulation platform designed by the authors [6] in 2016 with the aid of interactive instrumentation function of Simulink® Real-Time™ in Matlab. HIL-GSS allows students to design and test various controllers and guidance laws by using the HIL simulation system with high fidelity, instead of studying only the idealized theoretical models.…”