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《Chinese Journal of Atmospheric Sciences》 1983-04
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PRINCIPLE STUDY OF THE FM RADAR FOR IMPROVING THE ACCURACY IN QUANTITATIVE RAINFALL-RATE MEASUREMENT

Ma Zhenhua (Institute of Atmospheric Physics)Liu Guosheng Liu Wei(Nanjing College of Meteorology)  
The equations for estimating the echo power from rain when either a PM-pulsed radar or a FM-CW radar is used are derived. The results show that, with an adequate frequency range selected, rain echo power may have a value which correlates well linearly with the rainfall-rate, irrespective of the pattern of drop-size spectrum. Thus, it provides good remote sensing data for rainfall-rate measurement.
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