Research Article
Rain Attenuation Study at Ku-Band over Earth-Space Path in South Korea
Table 3
Calculated error percentage [0.005% to 0.5%] for 12.25 GHz.
| Procedures | Matrices | Occurrence | ITU-R P.311-15 | 0.5 | 0.2 | 0.1 | 0.05 | 0.02 | 0.01 | 0.005 | | | |
| ITU-R P. 618-13 | ε(P) | -0.59 | -0.38 | -0.35 | -0.22 | 0.04 | -0.11 | -0.14 | | | | STD | 0.46 | 0.24 | 0.22 | 0.08 | 0.18 | 0.03 | 0.01 | -0.15 | 0.19 | 0.24 | RMS | 1.77 | 1.32 | 1.75 | 1.30 | 0.31 | 1.16 | 2.17 | | | |
| DAH | ε(P) | -0.66 | -0.48 | -0.46 | -0.34 | -0.12 | -0.24 | -0.27 | | | | STD | 0.46 | 0.28 | 0.26 | 0.14 | 0.08 | 0.04 | 0.07 | -0.23 | 0.22 | 0.32 | RMS | 3.94 | 2.85 | 5.21 | 4.19 | 0.66 | 6.94 | 16.30 | | | |
| Ramachandran and Kumar | ε(P) | -0.32 | 0.04 | 0.10 | 0.39 | 1.16 | 0.57 | 0.28 | | | | STD | 0.49 | 0.13 | 0.07 | 0.22 | 0.99 | 0.39 | 0.11 | 0.12 | 0.23 | 0.26 | RMS | 0.96 | 0.13 | 0.51 | 2.34 | 8.14 | 6.22 | 4.25 | | | |
| Karasawa | ε(P) | -0.63 | -0.42 | -0.03 | -0.26 | -0.01 | 0.16 | 0.07 | | | | STD | 0.55 | 0.33 | 0.06 | 0.18 | 0.08 | 0.25 | 0.16 | -0.1 | 0.24 | 0.26 | RMS | 1.90 | 1.45 | 0.13 | 1.58 | 0.07 | 1.77 | 1.08 | | | |
| Proposed | ε(P) | -0.47 | -0.20 | -0.17 | 0.00 | 0.31 | 0.12 | 0.06 | | | | STD | 0.44 | 0.17 | 0.14 | 0.02 | 0.34 | 0.14 | 0.09 | -0.03 | 0.17 | 0.17 | RMS | 1.41 | 0.70 | 0.85 | 0.03 | 2.20 | 1.29 | 0.91 | | | |
|
|