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Keywords: slant range
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1985
Paper Number: OTC-4997-MS
...-distance range measurement system coordinate system algorithm transponder field computer trisponder interrogator projector bearing antenna experiment accuracy rms buoy slant range transponder horizontal range receiver OTe 4997 A High-Accuracy, Long-Distance Range Measurement System...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1980
Paper Number: OTC-3681-MS
... the original acquisition of the data in an arbitrary s-t coordinate system, where s represents the slant range from the vehicle to a point on the bottom, normal to the vehicle track, while t represents time of day, and thus vehicle position along its track. Since the slant range from the vehicle to a bottom...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 1979
Paper Number: OTC-3548-MS
... spatial corrections for slant range and speed to give high resolution, plan view graphic images, of the seafloor. Automatic amplitude corrections are also applied such that the darkness of the image relates directly to the backscattering strength of the seafloor material. Multiple image strips from...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 1979
Paper Number: OTC-3553-MS
... beacon application subsea system slant range upstream oil & gas accuracy long-baseline operation information operation long-baseline system long-baseline mode acoustic position reference system operator pinger transponder positioning hydrophone short-baseline system grid...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1978
Paper Number: OTC-3058-MS
... marine transportation subsea system slant range hvac reference system beacon hydrophone positioning operation calibration thmode long-baseline system calibrate relative position aerospace & defense atransponder array survey method procedure calibration procedure honeywell...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1977
Paper Number: OTC-2814-MS
... issued by the interrogation unit. The time delay between transmission of the interrogate pulse and receipt of the reply pulse by the vessel's transducer provides a measure of the slant ranges to each of the underwater transponders. When properly calibrated, these systems can provide precise navigation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1976
Paper Number: OTC-2563-MS
... where a spare acoustic transducer, carried for this purpose, is attached_to it. In the second step, the work board_ transits to a position sufficiently removed from the platform than an acoustically 'clear' slant range can be achieved. A horizontal displacement from the platform of one mile...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1975
Paper Number: OTC-2172-MS
... to travels outward from P and is received at HI and HZ at times t 1 and t 2 , respectively. hydrophone equation pinger reservoir characterization slant range correction hydrophone array arrival time displacement ship acoustic position measurement interrogator tracking transponder...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 18–20, 1971
Paper Number: OTC-1396-MS
.... Each satellite orbits the earth approximately every 108 minutes. The geometrical placement of the orbiting satellite allows an earth bound observer to cross directly under the satellite twice daily. upstream oil & gas slant range receiver channel receiver reservoir characterization...

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