Analysis of Fluctuation Characteristic Improvement of Meteorological Target Echo by Low-pass Filter
Meteorological radar is widely used in the field of detecting meteorological information.The accurate mea-surement of rainfall intensity by meteorological radar is discussed,the practical influence of the undulation character-istics of rain echo signal amplitude is analyzed,and the average echo power of rainfall intensity is obtained through further operation.The undulation characteristics of rain echo signal amplitude are reduced by adopting distance and azimuth low-pass filters,which verifies that the smaller the variance of the output signal of the filter is,the better the rise and fall characteristics of the echo signal are improved,and the better results are achieved.Finally,the simula-tion results of the same set of data are given by adjusting the low-pass filter coefficients.
meteorological radarintensity of rainfalllow-pass filter
NETL
NSTL
万方数据
维普
