Calibration of radio data

Neal Jackson

  • Need for calibration.
  • Quantities to be calibrated:
    • flux scale,
    • elevation,
    • phase calibration,
    • bandpasses,
    • pointing,
    • polarization,
    • fringe finders.
  • The enemies:
    • troposphere,
    • ionosphere,
    • correlators,
    • severity of the problems,
    • effect on different types of array.
  • Smearing:
    • choice of bandwidth and integration time.
  • Useful calibration sources for each type of calibration.
  • Calibration strategies.
    • Some examples for different interferometers, frequencies, types of observations.
    • Self-calibration.
  • Calibration software.
    • Brief description of calibration strategies in AIPS.
    • Very brief description of calibration in CASA.
Topic revision: r1 - 29 Aug 2009, AnitaRichards
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