GMT AO system requirements and error budgets in the preliminary design phase

摘要

Error budgets are an indispensable tool for assuring that project requirements can be and are being met. An error budgetwill typically include terms associated with subsystems which are being designed by different teams of engineers, andfabricated by different vendors. It is a useful tool at all levels of design since it provides a means to negotiate designtrades in the broadest possible context. Error budgeting is in many ways fundamental to the mission of systemsengineering and of course to the overall project success.In this paper we will describe the GMT Adaptive Optics System flow down requirements and their integration with theirwavefront error budgets. We will focus on the GMT Adaptive Optics wavefront error budgets for the followingobserving modes: Natural Guide Star Adaptive, Laser Tomography Adaptive Optics and Ground Layer Adaptive Optics.Finally, a description of the error budgets and the close link between the error budgets and other parameter such as skycoverage, zenith angle, etc., will be discussed in this paper.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.