摘要
随着科学技术的进步 ,各类无线数据通信设备的不断推出 ,无线数据通信事业的发展取得长足进展 ,同时无线电频率资源却日益紧张 ,通信干扰现象也较为严重 ,造成传输速率低下、可靠性降低 ;迫切需要一种新的技术手段加以解决 ;通过介绍扩频通信的基本原理、技术特点、实现方案、和在现代高速数据通信中的广泛应用 ,揭示了扩频技术在解决常规数据通信传输速率低下和频谱利用不合理等方面 ,起到的主要作用 ,阐述了扩频技术的广泛应用在无线电频谱资源管理工作中的重大意义和通信技术的优良性能和广阔的发展前景。
In recent years, with the development of science and technology, all kinds of wireless data communications equipments are put out constantly and the advance of the wireless data communication makes considerable progress. But at the same time wireless spectrum resource is in short supply day by day and the phenomenon of communication interfere is comparatively serious. It causes the low transfer rate and bad dependability. In order to solve this obvious contradiction, a kind of new technique method is required urgently. This paper introduces the fundamental principles, technique characteristics, realizing schemes and the abroad applications in the modern high-speed data communication of the spread spectrum communication, imposes the irreplaceable function of the spread spectrum technology which resolved the low transport rate and the irrationality of the usage of frequency spectrum during the normal data communication. The excellent performance and the wide development prospect of the spread spectrum communication technology is exhibited. The important meaning of the abroad application of spread spectrum technology in the management of wireless spectrum resource is expatiated in this paper.
出处
《淮南职业技术学院学报》
2004年第3期109-112,共4页
Journal of Huainan Vocational Technical College
关键词
扩频技术
直序扩频
跳频
伪随机码
切普
扩频增益
频谱资源
spread spectrum technology
direct sequence spread spectrum
frequency hopping, PN code
chip
spreading gain
spectrum resource
