求翻译：首先，本文介绍了无线传感器网络的体系结构、关键技术和应用领域等基础知识；然后，从基于测距和免于测距定位算法两个方面介绍了无线传感器网络的主要定位方法及其相应的算法，重点对基于测距和免于测距定位算法在性能上进行了分析；最后，本文对利用CC2431内部集成的定位引擎来实现Zigbee无线定位方法进行了研究。是什么意思？

First, the article describes the basics of wireless sensor network architecture, key technologies and applications; then, ranging from ranging localization algorithm two wireless sensor network positioning methods and their corresponding algorithm, the focus ranging and from the range positioning al

First of all, this article describes the wireless sensor network architecture, key technologies and applications, and other infrastructure; and then, based on the distance and to be free from the towfish positioning algorithm was introduced in wireless sensor networks of major positioning methods an

First, this article introduced wireless sensor elementary knowledges and so on network architecture, key technologies and application domain; Then, from introduced based on the range finder and avoid the range finder localization algorithm two aspects the wireless sensor network main localization me

First, this describes has wireless sensor network of system structure, and key technology and application area, Foundation knowledge; and, from based on ranging and from ranging positioning algorithm two a area describes has wireless sensor network of main positioning method and corresponding of alg