WU Jian-jun, FENG Wei-zhong, YU Wei. Study on electronic compass based on MEMS 3D magnetoresistive sensor[J]. 2011, 30(8): 83-85+88. DOI: 10.13873/j.1000-97872011.08.043.
An electronic compass which based on accelerometer and MEMS 3D magnetoresistive sensor is introduced.Compared with the electronic compass which based on 2-axes magnetoresistive sensor
this system can effectively compensate the angle error.The principle of measurement
hardware design and software process are introduced.By the method of intermediate average filtering
limit filtering and first order lag filtering
the maximum error of the system is less than 1°.The experiment result shows that the system can meet the demand of common navigatation field.