A novel range-free localization approach-smallest enclosing circle based localization (SECL) has been pro - posed.
提出一种新的无需测距定位算法——基于最小包含圆的定位(SECL)。
The mobile anchor spreads its location information to unknown nodes, assisting which to make range-free localization.
移动锚节点在网络中不断传播自己位置，协助未知节点定位自身位置。
There are mainly two types of localization algorithms: the range-based localization algorithms and range-free localization algorithms.
节点定位算法大致可分为两类：基于测距的算法和无需测距的算法。
If more useful information is available, the localization accuracy of the existing range-free localization algorithms should be increased.
如果传感节节点能得到更多有利于定位的信息，显然可以做到在已有算法的基础上提高定位的精度。
How to use Sequential Monte Carlo method for range-free localization scheme when we estimate the unknown node position in Wireles Sensor Networks?
在估计无线传感器网络未知节点位置时，如何使用与距离无关的贯序蒙特卡罗算法?。
This paper classifies the node localization technologies into two categories: range-based and range-free, then introduces and analyses several typical localization technologies.
该文将节点定位技术分为基于测距的和无需测距的两类，介绍和分析了几种典型的定位技术。
The range-free algorithm does not need additional hardware, and, thus, it is a cost-effective approach for the WSN localization problem.
而无需测距的定位算法不需要额外的硬件条件，是解决定位问题的一个比较经济适用的方法。
The range-free algorithm does not need additional hardware, and, thus, it is a cost-effective approach for the WSN localization problem.
而无需测距的定位算法不需要额外的硬件条件，是解决定位问题的一个比较经济适用的方法。
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