Radar sightings, while in certain respects more reliable, fail to discriminate between artificial objects and meteor trails, ionized gas, rain, or thermal discontinuities in the atmosphere.
在某种程度上更为可靠的雷达观测无法区别大气中的人造飞船、流星轨迹、电离的空气、雨滴和热断层。
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Liu Liping, Xu Baoxiang. 1992. Simulation and discussion of correcting microwave attenuation within rain area for dual linear polarization radar [J]. Plateau Meteor, 11 (3) : 235-240.