attenuation ratio

基本解释

Furthermore, with the method of amplitude ratio with different frequency selected, the areal attenuation effect and local site response have been studied.
采用振幅谱频率比方法，研究区域衰减效应和局部场地响应。
UWB possesses excellent characteristics: high spectrum utilization ratio, ambition performance of anti multi-path attenuation, very low emission power and good system security.
其具有频谱利用率高、抗多径衰落能力强、发送功率极小、系统安全性好等特点。
cjig.cn
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).
近几年发展起来的随机噪声衰减技术，对提高地面地震叠加剖面（或叠偏剖面）的信噪比有明显的效果。