Design of Active Stabilization Controller for a Tactical Rifle

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Abstract:This paper describes an inertial stabilized rifle where a recurve actuator, constructed frompiezoelectric material, is used to internially stabilize the barrel assembly of a tactical rifle tocompensate for the small user-induced disturbances. This system is an active stabilization systemdesigned to decouple the shooter’s interruption effects from the barrel movement based on controlsystems. Based on the feedback of the targeting error from the sensors, a control system will calculatethe desired displacement and force needed to cancel out the human disturbances that are imparted tothe rifle. The actuators are designed to cancel out jitter disturbances in a frequency range of 0Hz-5HzIt presents research to help protect and increase the defenses of soldiers on ground. While in battlethese soldiers’ defenses and performance suffer due the intense stressors of combat. A differentmethod for mitigating the depredating physiological effects of a soldier's marksmanship due to battlestressors can be achieved through the design and implementation of active stabilization system forsmall arms weapons. Combat stress may be defined as the perception of an imminent threat of seriouspersonal injury or death, or the stress of being tasked with the responsibility to protect another partyfrom imminent and serious injury or death, under conditions where response time is minimal.Physiological effects that result from combat include, but are not limited to, a dramatic increase inheart rate, heavy breathing, muscle tremors, and anxiety.The requirements of this system are discussed and the actuator controller are derived.This research uses pole-placement control techniques to develop control algorithms for simulation. Thelevel of performance for the control algorithm is based on how well measure up to the criteriadeveloped from the rifle.