Laser Guide Star Wavefront Sensor System

The behavior of the LGSWFS system of ARGOS is described by the following finite state machine (FSM):


Identified LGSW Tasks

No external light
  • Start all services, including CCD software
  • Switch on BCU
  • ICU: check light on CCD
  • adjust pupil position (field lens)
  • Adjust pointing
  • Switch off Internal calibration unit (ICU)


External light
  • Acquire
  • Look patrol camera
  • Re-point lasers
  • Have light on CCD
  • Adjust pupil
  • Adjust pointing
  • Dark/flat field acquisition
  • start compensation loops
  • Truth sensor / TT sensor

Topic revision: r3 - 01 Aug 2018, AndrewColson
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