software in the loop

One of the current problems in the development of simulation software of flying objects is the process of software development and development from the concept design phase of a project to the final stages of the hardware in the loop. In this paper, the necessary software engineering standards and procedures for the production of rigid multi-stage launch vehicle simulation software with a new approach are introduced in order to overcome this problem. The proposed RUP structure for the production of software with six degrees of freedom simulation software's ability to be used quickly and with minimal modifications in loop software and loop hardware labs.

In this paper, a robust attitude control algorithm is developed based on backstepping-sliding mode control for a satellite using four reaction wheels in a tetrahedron configuration. In this method, asymptotic stability of the proposed algorithm has been proven in the presence of reaction wheels dynamic model based on Lyapunov theory. Then, in order to evaluate the performance of the proposed algorithm, a low-cost real-time prossecor in the loop test bed is provided. The presented test bed is capable of real-time assessing the attitude backstepping-sliding mode control algorithm. In this test bed, real-time modeling of satellite dynamic, environmental disturbances and reaction wheels are achieved in a simulator computer and the proposed control algorithm performance is investigated by implementing it in an electronic control board of the prossecor in the loop test bed.