| 摘要 |
A seismic array has buoys 4 supporting platforms 10 and airguns 20 for use on a water surface 8. The platforms 10 comprise one or more cameras 16,18,42,44 which are used to image the buoy and which may also be used to image the airgun 10 or other platforms. Together with other information, this may more accurately locate the platforms 10 and airguns 20 even as these move about in water to improve the accuracy of seismic measurements. |
