attenuation ratio

基本解釋

Furthermore, with the method of amplitude ratio with different frequency selected, the areal attenuation effect and local site response have been studied.
采用振幅譜頻率比方法，研究區(qū)域衰減效應和局部場地響應。
UWB possesses excellent characteristics: high spectrum utilization ratio, ambition performance of anti multi-path attenuation, very low emission power and good system security.
其具有頻譜利用率高、抗多徑衰落能力強、發(fā)送功率極小、系統(tǒng)安全性好等特點。
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Random noise attenuation technique developed in recent years is obviously effective on improving the signal-noise ratio of surface seismic stack section(or stack migration section).
近幾年發(fā)展起來的隨機噪聲衰減技術，對提高地面地震疊加剖面（或疊偏剖面）的信噪比有明顯的效果。