Based on the experience in building WLAN in a mountain area county, the author analyses the direct sequence spread spectrum in WLAN transmission technique, the composition of WLAN and their applications, as well as the standard of WLAN.

• 本文基于在一个山区县建成无线局域网的实践，研究无线局域网传输技术当中的直接序列扩频、无线局域网系统的组成和各种应用，并介绍无线局域网的标准。