Orthogonal Spline Moments
orthogonal spline wavelet
bi-orthogonal B-spline wavelets
semi-orthogonal B-spline wavelets
Orthogonal Experiment Design or Orthogonal Design
generalized spline-on-spline
2-D optical orthogonal codes(OOC)
2D orthogonal polynomial
3D orthogonal woven composite
3-D orthogonal woven composites
3D orthogonal woven fabric
3-D orthogonal woven fabric
adaptive orthogonal least square
adaptive orthogonal projective decomposition
adaptive orthogonal wavelet
adjoint orthogonal system
adjoint orthogonal systems
Alamouti orthogonal space time code