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Thesis - Leigh Moody.pdf - Bad Request - Cranfield University

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Glossary<br />

_ _<br />

0.9 Matrix Operators<br />

[ M ] Square brackets are used to denote matrices (optional)<br />

( i , j )<br />

m The component in the i’th row and j’th column of [M]<br />

[ A ] ⋅ [ B ] Matrix product of matrices [A] and [B]<br />

[ A ] ⊗ [ B ] Element by element multiplication of matrices [A] and [B]<br />

det [ M ] Determinant of matrix [M]<br />

tr [ M ] Trace of matrix [M]<br />

[ ] T<br />

M Transpose of matrix [M]<br />

[ ] 1<br />

M − Inverse of matrix [M], defined ⇔ det [M] ≠ 0.<br />

M Matrix-2 norm of a matrix [M]<br />

L2<br />

M Frobenius norm of a matrix [M]<br />

F<br />

U [ M ] The upper triangular matrix extracted from matrix [M]<br />

including the main diagonal<br />

L [ M ] The lower triangular matrix extracted from matrix [M]<br />

excluding the main diagonal<br />

0.10 Quaternion Operators<br />

B<br />

Q A Quaternion representing the orientation of frame (B) with<br />

respect to frame (A)<br />

C<br />

B<br />

B<br />

A<br />

Q Q ⊗ Quaternion product<br />

( ) * B<br />

Q Quaternion transposition equivalent to A<br />

Q<br />

A<br />

0.11 Uncertainty and Covariance Operators<br />

A Auto-covariance of random variable (A)<br />

A , B Cross-covariance of random variable (A,B)<br />

E ( A)<br />

Expectation operator acting on variable (A)<br />

xxxiii<br />

B

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