핵심 개념
가우시안 분포를 가정한 정확한 오류 공분산식을 제시함
통계
"The current note relaxes the second-order assumption and provides an expression for the error covariance that is exact to the fourth order, under the assumption of Gaussian distribution."
"The fourth-order terms in 푃횫bq can be expressed as follows (see Appendix A)"
인용구
"The simplicity of the estimator enables clear physical insights and a closed-form expression for the bias as a function of the quaternion error covariance matrix."
"This not only provides increased accuracy but also alleviates issues related to singularity."