Table 4 Parameters of piecewise linear function for fitting Imaginary parts in Eq. (25) with p = 4 and q = 4
Amount of piecewise lines q | Phase error δ/rad | Path length error ɛ/λ | Parameter c | Parameter d | Fitting error e |
|---|---|---|---|---|---|
1 | [−3.14, −3.03) | [−0.250, −0.241) | −3.646 3 | −1.184 4 | 0.045 |
2 | [−3.03, −2.49) | [−0.241, −0.198) | −3.115 3 | −1.005 1 | 0.049 6 |
3 | [−2.49, −1.41) | [−0.198, −0.112) | −1.606 4 | −0.371 4 | 0.049 9 |
4 | [−1.41, −0.39) | [−0.112, −0.031) | −0.204 4 | 0.605 2 | 0.048 7 |
5 | [−0.39, −0.01) | [−0.031, −0.001) | −0.002 1 | 0.976 4 | 0.035 |
6 | [−0.01, 0.01) | [−0.001, 0.001) | 0 | 1 | 0 |
7 | [0.01, 0.44) | [0.001, 0.035) | 0.003 | 0.970 1 | 0.047 8 |
8 | [0.44, 1.48) | [0.035, 0.118) | 0.246 6 | 0.557 8 | 0.049 2 |
9 | [1.48, 2.54) | [0.118, 0.202) | 1.700 1 | −0.417 7 | 0.048 9 |
10 | [2.54, 3.04) | [0.202, 0.242) | 3.150 2 | −1.017 3 | 0.042 9 |
11 | [3.04, 3.29) | [2.61, 4.1) | 3.760 3 | −1.221 3 | 0.048 2 |