Title :
Study of quantization effects on rainfall rate estimation from GPM dual-frequency radar
Author :
Mardiana, Redy ; Iguchi, Toshio ; Takahashi, Nobuhiro ; Hanado, Hiroshi
Author_Institution :
Commun. Res. Lab., Tokyo, Japan
fDate :
7/1/2004 12:00:00 AM
Abstract :
The effect of quantization on rainfall rate estimation from the Global Precipitation Measurement dual-frequency radar is studied quantitatively through numerical simulations. The error generated by a deterministic quantization or by a dithered quantization on rainfall rate estimation is combined with the errors from statistical fluctuation of the signal and the receiver noise. The preliminary results for the rain-rate range of 1-10 mmh-1 are presented.
Keywords :
atmospheric precipitation; atmospheric techniques; meteorological radar; remote sensing by radar; GPM dual-frequency Radar; Global Precipitation Measurement dual-frequency radar; numerical simulations; quantization effects; rainfall rate estimation; statistical fluctuation; Frequency estimation; Frequency measurement; Numerical simulation; Quantization; Radar detection; Radar measurements; Rain; Reflectivity; Satellites; Spaceborne radar; Precipitation radar; quantization; rain profiling;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2004.830615
