信号在传输介质中传播时,将会有一部分能量转化成热能或者被传输介质吸收,从而造成信号强度不断减弱,这种现象称为衰减。信号衰减是通信传输的一个重要特征。信号衰减程度不但是评价通信质量优劣的重要指标,而且直接影响着通信系统的扩容升级、通信传输缆线布置中的中继距离等特性。
n. attenuation ; damping
衰减 [物] Attenuation ; Falloff ; attenuate ; to decay
衰减器 [电子] Attenuator ; Fader ; FDR fader ; [电子] attenuation pad
对数衰减 logarithmic decrement ; Quadratic Falloff ; logarithmic damping
衰减系数 attenuation factor ; [物] damping coefficient ; decay coefficient
指数衰减 exponential attenuation ; exponential damping ; [数] decaying exponential
衰减常数 [物] attenuation constant ; attenuation factor ; [物] damping constant
自由感应衰减 [分化] Free induction decay ; FID
衰减率 damping decrement ; [物] attenuation ratio ; rejection ratio
衰减量 Attenuation ; [物] decrement ; Amount of attenuation
衰减时间 [核] decay time ; [电子] fall time
The study of seismic attenuation property is a major subject in seismology.
地震波衰减性质的研究是地震学研究的重要课题。
参考来源 - 云南地区地震波衰减(Q值)结构反演成像研究The blasting vibration of creep mass slope of Longtan hydropower station is observed,interpreted and analyzed. The experiential formula of decay for the blasting earthquake wave is obtained.
对龙滩水电站蠕变体边坡的爆破振动进行观测、分析和处理,得到了爆破地震波衰减经验公式。
参考来源 - 期刊学术社区Its optic attenuation performance was measured by the integration test system of guided missile.
利用专用导弹综合测试系统,对其光学衰减性能进行了测试。
参考来源 - 期刊学术社区With the rapid development of microwave vacuum devices in our country, many development departments of information Arms and Equipments urgently need new cermet attenuator materials, whose performance directly affects the performance level of microwave devices.
随着我国微波电真空器件的迅速发展,许多信息武器装备的研制单位迫切需要新型的金属陶瓷衰减器材料。
参考来源 - 粗糙集理论在衰减器材料性能分析和筛选技术领域应用·2,447,543篇论文数据,部分数据来源于NoteExpress
他发现,声音回声衰减的时间长短取决于周围物质对声音原始能量的吸收。
He found that the length of time it takes a sound's echo to decay is determined by the absorption of the sound's original energy by surrounding material.
人人都佩服她的耐心和永不衰减的好脾气。
对数学狂人来说,这是标准的指数衰减。
So, that was a naturally occurring attenuated virus that could be produced into a vaccine that didn't cause the disease.
因为天花病毒存在天然的衰减病毒,这种衰减病毒可以用来,直接生产不致病的疫苗
And what is plotted below is the actual wave function, so you can see it starts very high and then the decays down.
下面这画的是,波函数,你们可以看见它开始非常高,然后衰减下来。
p We want p equal to p external for the entire expansion, p2 and p external is decreased steadily from p1 to p2.
在膨胀过程中保持p等于外部,外部p很快从p1衰减到。
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