有线通信系统 meaning in Chinese
line-wire communications
Examples
- Fire wired communication system
消防有线通信系统 - It is necessary in digital communication system that carrier recovery can compensate frequency offset and phase jitter brought by transmission and modulation . this paper is mainly focused on carrier recovery technique . we introduce the channel model at cable headed and receiving site . firstly , we introduce the principle of carrier recovery and give some algorithms of them , which are directed - decision , reduced constellation and frequency sweeping
本论文紧紧围绕着数字通信系统中的载波恢复技术，在介绍了有线通信系统所用的调制解调信道模型后，首先阐述了载波恢复技术的思想和基本原理，在此基础上给出了三种载波恢复算法，即判决导向算法、简化星座判决算法和扫频算法，并且给出了其各自的仿真图：然后深入研究了一种适合高阶qam并且能纠正较大频偏的载波恢复技术：极性判决算法。 - Aiming at the practical situations of frequent accidents on mine gas and existing mine gas wire communication system needs to be improved towards wireless communication system , the paper put forward all nodes of gas sensor distributed in underground were brought into an intelligent and flexible wireless network system , so as to form a gas sensor networks system with layering and characteristic of intrinsical safety which relayed on the sensor ' s node
摘要针对矿井瓦斯事故频发、现有矿井瓦斯监测有线通信系统急需向无线通信系统改进的实际情况，文章提出了将分布于井下的所有瓦斯传感器节点纳入一个智能化、结构灵活的无线网络系统，组成以传感器节点为依托的层次化且具有本安特性的瓦斯传感器网络系统。