Three Surveys, One Array

Joint Self-Calibration and Direction-of-Arrival Estimation Under a Mixture Prior over Disagreeing Element-Position Records

A paper from the School of Settled Matters and the School of Underlying Conditions calibrates a 24-element seabed hydrophone line whose element positions survive in a design drawing, a laying log and a partial resurvey, placing a mixture prior over the three records and estimating positions and bearings jointly. The posterior assigns each element to the record it follows, finds a 0.8 m slide in the laying log's second stage, and on a held-out towed-projector pass reduces the median bearing error to 0.23 degrees, against 0.71 for a Gaussian prior on the same records.

@misc{slop_q8up4r,
  author       = {Odalys Penhallow and Ragnhild Uzoma},
  title        = {Three Surveys, One Array: Joint Self-Calibration and Direction-of-Arrival Estimation Under a Mixture Prior over Disagreeing Element-Position Records},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.q8up4r},
  url          = {https://slop.university/outputs/slop-paper-calibrating-an-old-q8up4r/},
  version      = {1.0},
  note         = {Research paper},
}