衰落现象

结果表明，FRM对于消除偏振诱导信号衰落现象有显著效果。

The results show that the FRM have a significant effect for the elimination of the polarization induced signal fading phenomenon . 3 .

多载波调制（MCM）技术是适合BWS的物理层调制技术，可以很好的解决宽带无线情况下出现的频率选择性衰落现象及简化多径衰落信道环境的均衡问题。

Multi-carrier modulation ( MCM ) is a preferable physical layer technology for BWS , since it can efficiently mitigate the frequency-dependent distortion across a wide frequency band and simplify the equalization in a multipath fading environment .

微波中继通信中的路由选择和衰落现象

Fading phenomena and route selection in microwave relay communication

第二次世界大战后，英国经济出现了明显的衰落现象。

After the Second World War , the British economy experienced obvious comedown .

然而，就在此时，我们的传统文化，大部分正在流失，众多民间艺术在不同程度的出现衰落现象。

However , in this time , our traditional culture , the majority is draining , numerous folk art in varying degree appearance fading .

由于对流层散射信道存在严重的衰落现象，故而传统的锁相环机制在散射通信中往往难以奏效。

Because of the fading characteristic in troposcatter channel , the mechanism of traditional phase locked loop is difficult to achieve the effect in troposcatter communication .

在地空无线战术通信与导航系统的研发和地面台站安装过程中，无线电波空间传播时的多径衰落现象是一个必须认真分析处理的重要环节。

In the development of air-ground radio communications and navigation system and installation of ground stations . How to reduce the multi-path fading in wireless communication channel at far field is a very important problem .

由于室内环境复杂，干扰大，反射、绕射、折射和散射造成的多径效应明显，而且因人员的走动而造成的衰落现象非常严重，所以室内定位的难度相对较大。

As the indoor wireless environment is complex , which includes large interference , multi-path effects caused by reflection , diffraction , refraction and scattering and serious fading caused by the movement of people , indoor position is more difficult than other location technology .

本文对矩形隧道和矩形棚洞内的场强分布进行了研究，总结了不同几何尺寸、电磁传播频率、电磁极化方式下，其中的电磁传播特点，发现其具有很明显的多径衰落现象。

This article study electromagnetic field intensity coverage in the rectangular tunnel and rectangular hangar tunnel . Summarized their characteristics in different geometry size , different electromagnetic transmission frequency , different electromagnetic polarization mode , shown there exists very obvious phenomenon of multipath fading .

因此干涉传感系统会产生干涉现象不稳定、输出信号衰落的现象，从而导致系统测量精度下降。

Therefore interference will produce interference sensing system instability , decline of output signal , results in degraded accuracy .

这种被经济学家称为“荷兰病”（指一国经济中某一初级产品部门异常繁荣而导致其他部门的衰落的现象——译注）的状况，让制造业在俄罗斯经济中的比重从2000年的21%降到了现在的8%。

This correlation - termed by economists " Dutch disease " - lowered the Russian manufacturing sector 's share of its economy to 8 % from 21 % in 2000 .

本章对农村传统合作医疗制度走向衰落、赤脚医生现象的终结的过程进行了阐述，对合作医疗制度衰落的消极影响进行了分析。

This chapter expounds the enervation of the traditional rural cooperative medical system and disappearance of barefoot doctors , and it analyses the negative impact of the decline of the cooperative medical system .

仿真结果表明，当参数△和K超过一定值时，超瑞利衰落信道经历了比瑞利衰落更糟糕的衰落现象。

Simulation results indicate hyper-Rayleigh fading exhibits worse fading phenomena than Rayleigh fading when parameters Δ and K exceed certain values .