Consensus algorithms for a class of disturbed nonlinear multi-agent systems via integral sliding-mode control

This paper studies the velocity and altitude consensus problems of multi-hypersonic vehicle systems with disturbances. By the combination of integral sliding-mode control method and high-order disturbance observer technique, consensus protocols for a class of leaderless multi-hypersonic vehicle systems are proposed to achieve the velocity and altitude consensus. Firstly, high-order disturbance observers are designed to estimate the disturbances affecting each hypersonic vehicle. Then, based on integral sliding-mode control and disturbance estimates, a consensus scheme is presented to achieve the velocity and altitude asymptotic consensus of the multi-hypersonic vehicle systems. Moreover, numerical simulations are given to validate the efficiency of the proposed consensus algorithms.