Computer Science – Sound
Scientific paper
Mar 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010adspr..45..669i&link_type=abstract
Advances in Space Research, Volume 45, Issue 5, p. 669-675.
Computer Science
Sound
1
Scientific paper
We present a calculation of the accuracy and speed of the Voigt function of various algorithms (Armstrong (1967), Hui et al. (1978), Humlicek (1982) and improved version of Kuntz (1997) developed in this study) for making the faster and higher accuracy forward model required for the Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) Level 2 (L2) data processing system. The maximum relative error of the improved Kuntz’s and Armstrong’s algorithm is ɛmax˜2.52×10-5 in the high-altitude range (y<1) and a minimum value of ɛ˜9.38×10-5 compared to the other results in the mid- and low-altitude range (y>1), which meet a required precision of the SMILES L2 data processing system. The improved algorithm also shows the fastest calculation time compared to the other algorithms over the observable altitudes of SMILES. It is therefore concluded that the improved algorithm should be applied for the SMILES L2 data processing system.
Imai Koji
Suzuki Makoto
Takahashi Chikako
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