Processing Power/Angle data obtained from Ethernet data subscription or from reading raw files containing Power/Angle data, requires special attention. Make sure that you use the correct conversion formulas, in case the data is sampled by a transducer using geometry of the
following types.
When you use the Wide Band Transceiver (WBT) with transducers with BeamType = 17, 49, 65 or 81 (decimal values), the angle value from Power/Angle files must be scaled. After reading and converting the angle values from the file formats to the formats of your own program, do the following scaling:
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AlongShip angle must be multiplied by 2/sqrt(3) before calculating arcsin. |
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AthwartShip angle must be multiplied by 2. |
Use the AngleSensitivityAlongShip and AngleSensitivityAthwartship values as they are. The angle sensitivity is retrieved from the Configuration XML datagram.