Equation Icon  T Oˆ1 (Ω) = H [ϕ1]ˆb1 = ˆb1c(Ω )cosϕ1 + ˆb1s(Ω) sin ϕ1, (246 ) Oˆ2 (Ω) = HT [ϕ2]ˆb2 = ˆb2c(Ω )cosϕ2 + ˆb2s(Ω) sin ϕ2, (247 )