Optimization of multimagnetometer systems on a spacecraft

Details Optimization of multimagnetometer systems on a spacecraft Optimization of multimagnetometer systems on a spacecraft

Aug 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80.3235n&link_type=abstract

Journal of Geophysical Research, vol. 80, Aug. 1, 1975, p. 3235-3240.

Mathematics

2

Error Analysis, Instrument Errors, Magnetometers, Optimization, Spacecraft Instruments, Booms (Equipment), Interplanetary Magnetic Fields, Magnetic Field Configurations, Matrices (Mathematics)

Scientific paper

The problem of optimizing the position of magnetometers along a boom of given length to yield a minimized total error is investigated. The discussion is limited to at most four magnetometers, which seems to be a practical limit due to weight, power, and financial considerations. The outlined error analysis is applied to some illustrative cases. The optimal magnetometer locations, for which the total error is minimum, are computed for given boom length, instrument errors, and very conservative magnetic field models characteristic for spacecraft with only a restricted or ineffective magnetic cleanliness program. It is shown that the error contribution by the magnetometer inaccuracy is increased as the number of magnetometers is increased, whereas the spacecraft field uncertainty is diminished by an appreciably larger amount.

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