Sensor accuracy values for TPU must be entered as 1-sigma. |
The Sensor Standard Deviations subcomponent in the TPU Values has the following attributes in the Attributes window:
• Date: The year and Julian day of the sensor standard deviations time stamp (see Component Time Stamps). This is only editable in the TPU Values component.
• Time: The hour and minute of the sensor standard deviations time stamp (see Component Time Stamps). This is only editable in the TPU Values component.
• Heading/Gyro: The measurement standard deviation of the heading data in degrees.
• Heave % Amp: An additional heave standard deviation component that is the percentage of the instantaneous heave.
• Heave (m): The measurement for standard deviation of the heave data. Most heave manufacturers quote heave error as being determined from StaticHeave or PercentageOfHeave depending on which value is larger.
• Roll: The measurement standard deviation of the roll data in degrees.
• Pitch: The measurement standard deviation of the pitch data in degrees.
• Position Nav: The standard deviation associated with the measurement of positions for the vessel. This is usually the error of the GPS sensor being used.
• GPS Height: The standard deviation of the GPS Height sensor.
• Timing Trans: Standard deviation in transducer time stamp measurement.
• Nav Timing: Standard deviation in navigation time stamp measurement.
• Heading/Gyro Timing: Standard deviation in gyro time stamp measurement.
• Heave Timing: Standard deviation in heave time stamp measurement.
• Pitch Timing: Standard deviation in pitch time stamp measurement.
• Roll Timing: Standard deviation in roll time stamp measurement.
• MRU Align StdDev Gyro: The uncertainty of the MRU placement within the vessel fixed coordinate frame.
• MRU Align StdDev Roll/Pitch: The uncertainty of the MRU placement within the vessel fixed coordinate frame.
You cannot directly change or add time stamps in the Attributes window for the Sensor Standard Deviations component because they are synchronized with the TPU Values component. To change or add these time stamps, see Adding attributes to synchronized components. |