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提出了一套针对无线节点空间定位的修正算法。首先提出了一种抽样后求点估计的方法,消除了GPS信息误差造成的影响,然后通过分治法的策略来选取锚节点,保证锚节点的可靠性,普通节点可以通过锚节点与本身进行定位求概率分布,继而修正拓扑,最后通过一个竞争机制来进行有序的网络拓扑坐标修正。实际测试达到了预期的效果。通过该算法,可以在较低功耗下将无线传感网络的定位精度提高,使得无线传感网络能够适应高定位精度的要求。
A set of correction algorithms for wireless node space location is proposed. Firstly, a method of seeking point after sampling is proposed, which eliminates the influence caused by GPS information error. Then the anchor node is selected by the divide-and-conquer method to ensure the reliability of the anchor node. The common node can be connected with the anchor node itself Locate the probability distribution, and then correct the topology, and finally through a competitive mechanism for orderly network topology coordinate correction. The actual test to achieve the desired results. Through this algorithm, the positioning accuracy of wireless sensor network can be improved under lower power consumption, making the wireless sensor network adapt to the requirements of high positioning accuracy.