In the ADIS16203 datasheet is a figure explaining tilt plane error (reproduced below). In the datasheet it says that 10 degrees of tilt plane error would produce +/-1 degree of inclination error. What if my tilt plane error is greater than 10 degrees? Is there a way to calibrate it out? If it can't be calibrated out, would the next best solution would be to use a 3-axis accelerometer and do the calculations externally? Do you have a document describing how to do these caluclations?