H∞ Jitter Control for a Platform-Mounted Laser

Abstract This paper presents a jitter control design for a platform-mounted laser. The controller reduces the transmission of platform jitter, modeled as a multi-tonal signal plus broadband noise, to the laser beam. The design utilizes the well-known H ∞ loop shaping design procedure to ensure a balance between robust stability requirements and disturbance rejection specifications. Numerical simulation demonstrated at least a 20 dB (or, equivalently, > 90%) reduction at the tonal frequencies. Comparison to a previously implemented controller provides verification of a successful implementation of the proposed controller.