propagation channel meaning in English
传播信道
Examples
- Moreover , the performance of the single - cell s - cdma system employing go sequences under the multi - path propagation channel is analyzed , resulting analytical sir expressions , the numerical and simulation error results , for rayleigh and rice fading channels respectively
此外，本文还对多径传输条件下采用go序列扩频的单小区s - cdma系统性能进行了理论分析，给出了瑞利、莱斯衰落信道条件下sir表达式以及误码性能数值计算和仿真结果。 - As we all know , the capability of wireless communication system is constrained by radio propagation channel , especially for future wideband communication system . so it needs more signal processing techniques to withstand bad radio propagation environment , such as diversity combination , coherent detection and channel encoding and decoding etc . for mimo physical layer approaches , channel state information is a prerequisite , thus comes many channel estimation approaches and algorithms
无线通信系统的性能主要受到移动无线信道的制约,特别对未来的宽带移动通信系统更需要采用很多信号处理技术来对抗恶劣的无线传播环境以提高系统性能,比如常见的分集合并、相关检测和信道编解码技术等,而采用这些技术的前提就是要知道信道的状态信息( csi ) 。 - Although , the high performance promised by mimo technology is highly dependent on the propagation channels . meanwhile , we need to establish mimo radio channel models and corresponding simulations to research key technologies and algorithms in mimo systems and to evaluate the system performance
然而, mimo无线系统大容量的实现和其它性能的提高极大地依赖于mimo无线信道的特性;同时,研究基于mimo的各种关键技术和处理算法也需要建立mimo信道的模型,进行相应的仿真,以便评估各种处理算法的优劣和系统性能的好坏。 - In chapter two " understanding " , it puts forward the new concept of news planning by enterprise , analyses its distinction from advertisement , propagation and public relation and defines the intension and extension of news planning by enterprises , it defines news planning by enterprise as economic , innovative , ahead of time , open , cultural , real and original ; it sets out the three objectives of news planning , namely : brand , sale and competition ; finally it discusses the five trends of news planning by enterprise : namely , professionalism of propagating subject , net of propagation channel , harmonization of planning practice , extensive scope of service and normal understanding of news planning
在第二章“认识篇”中，提出了全新的企业新闻策划的概念，并分析了其与广告、宣传、公共关系等相关概念的区别，界定了企业新闻策划的内涵与外延；指出企业新闻策划具有经济性、创新性、超前性、开放性、文化性、现实性及原创性等特点；明确了企业新闻策划具有品牌、销售和竞争三大目标；最后探讨了企业新闻策划的五大趋势，即传播主体的职业化，传播渠道的网络化，策划实务的整合化，服务范围的广泛化以及对新闻策划理解的平常化等等。