Multi-Parameter Control Anti-Jamming Algorithm for Wireless Communication Systems Based on Disturbance Observer

In response to the challenge of existing wireless communication anti-jamming methods in effectively handling unknown jamming, this paper proposes a multi-parameter control anti-jamming algorithm for wireless communication systems based on disturbance observer. The algorithm first models the wireless communication system as a linear switched system and uses a disturbance observer to generate an estimate of the system state under jamming. Next, the algorithm predicts future tracking errors and the steady-state control input based on the estimated values, optimizing the system's control strategy to adapt to the jamming environment. Theoretical analysis and simulation results demonstrate that the proposed algorithm can rapidly adjust modulation schemes and transmission power under time-varying malicious jamming, thereby maintaining bit error rate (BER) stability and improving system communication reliability.