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tagwiki:tools:calibration:fix_offset_3d [2017/08/04 13:42] (current)
das39 created
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 +====== fix_offset_3d ======
 +Estimate the offset in each axis of a triaxial field measurement from an accelerometer or magnetometer.
 +-----
  
 +===== Syntax =====
 +=== Matlab & Octave ===
 +<​code>​
 +[X,G] = fix_offset_3d(X)
 +</​code>​
 +=== R ===
 +<​code>​
 +list <- fix_offset_3d(X)
 +</​code>​
 +
 +===== Description =====
 +Estimate the offset in each axis of a triaxial field measurement,​ e.g., from an accelerometer or magnetometer. This is useful for correcting drift or calibration errors in a sensor.
 +
 +===== Inputs =====
 +^ Input var ^ Description ^ Units ^
 +|X| is a sensor structure/​list or matrix containing measurements from a triaxial field sensor such as an accelerometer or magnetometer. X can be in any units and frame.|N/A|
 +
 +===== Outputs =====
 +^ Output var ^ Description ^ Units^
 +|X| is a sensor structure/​list or matrix containing the adjusted triaxial sensor measurements. It is the same size and has the same sampling rate and units as the input data. If the input is a sensor structure/​list,​ the output will be also. |N/A|
 +|G| is a calibration structure containing one field: G.poly/​G$poly. The first column of G.poly/​G$poly contains 1 as this function does not adjust the scale factor of X. The second column of G.poly/​G$poly is the offset added to each column of X.|N/A|
 +
 +===== Notes & assumptions =====
 +  -This function is only usable for field sensors. It will not work for gyroscope data.
 +
 +===== Example =====
 +
 +Will come soon!
 +
 +===== About =====
 +[[bugs@animaltags.org]]
 +Last modified: 4 August 2017
  • tagwiki/tools/calibration/fix_offset_3d.txt
  • Last modified: 2017/08/04 13:42
  • by das39