From: Analysis of an offset modulation transmission
0<α<0. 1
0. 1≤α<0. 2
0. 2≤α<0. 3
φ≈ β sin ( Ψ os ) 4 ( 1 − γ )
0≤γ<0.988
0≤γ<0.97
0≤γ<0.96
φ≈ β sin ( Ψ os ) 5 ( 1 − γ )
0.988≤γ<1
0.97≤γ<1
0.96≤γ<1