扩频通信技术浅谈

文中阐述了扩频通信系统的特点,分析了扩频通信可行性的理论基础,即信息论中关于信息容量的香农公式和柯捷尔尼可夫关于信息差错概率公式,指出了扩频通信的主要性能指标,给出了扩频通信的数学模型和物理模型,最后分析了几种典型的扩频方式(包括直接序列扩频、跳频扩频、跳时扩频和直扩/跳频混合扩频)及其应用领域。

This thesis expounds the characteristics of spread spectrum communicat ion and analyses its feasible theory foundations-Shannon formula about informati on capacity in Information Theory and the formula of information error probabili ty. Then, it points out the basis performance index and presents the mathematics model and physics model. Finally, it analyses several typical spread spectrum m anners, including DSSS?FHSS? THSS and FH / DS, and their fields of applications.