Automobile navigation using a magnetic flux-gate compass

@article{Peters1986AutomobileNU,
  title={Automobile navigation using a magnetic flux-gate compass},
  author={T. J. Peters},
  journal={IEEE Transactions on Vehicular Technology},
  year={1986},
  volume={35},
  pages={41-47}
}
The classic technology of the saturable core may be combined with the microcomputer to yield an improved version of the magnetic flux-gate compass. General description and fundamental principles are discussed with application to mass-produced automobiles. A transfer function between the earth's magnetic field and the fluxgate output voltages is developed. The introduction of the microcomputer allows a faster calibration which does not require any type of nulling or feedback circuit. 

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