ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Study on CINRAD Radar Data Quality Control Methods
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Abstract:
Through the analysis of the radar data sources of clutter and the research results of radar data quality control at home and abroad, the processing method of radar data quality control has been tested and investigated. The results show that: (1) Doppler radar data quality control should use the transversal method to deal with different layer of data clutter, with the technical route of close distance transformation, long distance fold, algorithm to filter, and data complementation; (2) the identification feature is obtained from precipitation echo to ground clutter; (3) the isolated and scattering radar clutter in long distance is dealt with comprehensive methods such as mutation rate from statistics, overlying analysis of twolayer elevation angles, and improved median filter algorithm, to eliminate data clutter. However, the close radar clutter is dealt with an alternation method of polyelevation angles to wipe off; (4) introduce the data complementary conception by using data of “radar pair”, radar production data and other ones including satellite image, automatic rainfall station.
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