- multipath propagation（多径传播）: radio signal reflects off objects ground, arriving ad destination at slightly different
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...： 扩频 通信；多径传播；信号检测；Rake接收机；CDMA [gap=1169]Keywords ：spread spectrum communication;multipath channels;signal detection;Rake receivers;CDMA ...
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But the noises, the attenuation and the multipath propagation inhering in the powerline make it very difficult to realize such kind of communication system.
但是电力线信道上存在的各种噪声、衰减和多径传播等问题,这些都大大提高了通信的难度。
参考来源 - 低压电力线OFDM通信系统的实现及其均衡与同步技术的研究According to a general multipath propagation model of land mobile radio communication, a simulation method for the mobile radio channel with the complex-valued impulse response is presented. The fading correlation is naturally contained in the simulation results.
根据移动通信多径传播的一般化模型,模拟产生了移动无线信道的复值脉冲响应函数,模拟结果自然地反映了信道的衰落相关性,通过调整四个参数,可描述瑞利、Rice或其它形式的衰落信道,利用模拟结果分折数字通信中由于多径衰落引起的突发误码分布已取得成效。
参考来源 - 移动无线信道脉冲响应的计算机模拟 in C·2,447,543篇论文数据，部分数据来源于NoteExpress
在实际的通信环境中，信号往往是多径传播。
In real communication environment, signal transmits with multi-path.
使用随机桥过程研究超宽带(uwb)多径传播信道。
Stochastic bridge processes are employed to analyze the characteristics of UWB multipath propagation channels in the current research.
该模型充分考虑了多径传播，以及频率和长度对衰减的影响，使其更具有实用价值。
The model has fully considered the multi way of transition, as well as the frequency and length affected to the reduction in order to have more practical value.
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