multipath distortion meaning in Chinese
多径失真
Examples
- In analog tv , such multipath distortion shows up as ghosts
在类比电视中，这种多路径失真的外在现象就是鬼影。 - The u . s . transmission format is called 8 - vsb ( for 8 - level vestigial sideband ) , which is more susceptible to multipath distortion than the european system , called coded orthogonal frequency division multiplexing , or cofdm
美国的传送格式是八阶残边带（ 8 - vsb ） ，这种格式比欧洲的编码正交分频多工（ cofdm ）系统，更容易受到多路径问题影响。 - Distortion and gauss white noise distortion . the simulation of ideal system aims at absolutely clean channel , and the nonideal systems respectively set their channels as ricean channel ( multipath distortion channel ) and awgn ( gauss white noise distortion channel ) . at the end of simulation , it use examining means of communication system as ber ( bit error rate ) analysis and eye diagrams analysis , then gives a summarize and a comment to the system
仿真中的系统结构、模块和传输速率的选择符合标准的dvb1规范en300744 ，理想系统的仿真是针对完全干净的信道，而非理想系统分别将信道设置为hcean信道哆径干扰信道）和awgn （高斯白噪声信道） ，仿真最后用通信系统的检测手段进行误码率分析和眼图分析，并对该系统作了总结和评价，加深对了dvb1系统的信号处理过程的理解，明确了目前面临的问题。 - And pays emphasis on analyzing the system structure and system flow , the core techniques , the channel characteristic and parameters of dvb - t system . the system adopts some core techniques such as cofdm , a lot of tps ( transmission parameter signalling ) insert and guard interval , and so on . so it can withstand high - level ( up to odb ) , long delay static and dynamic multipath distortion
论文首先描述了数字电视地面广播的需求条件，技术难点和目前存在的问题，并重点分析了dvb - t系统结构流程，核心技术及系统信道特性和参数，该系统采用了cofdm (编码正交频分多路复用) ，大量导频信号插入和保护间隔技术等核心技术，使之能抵抗高电平( 0db ) ，长延时的静态和动态多径失真，有利于数字和模拟电视的混合传输，它的多载波调制模式功能和性能在移动和便携接收、同频网等方面具有独特的优势。