CAJ | 학술논문

节点定位是实现传感器网络应用的前提，控制节点定位误差成为保证网络正常运行的关键。采用基于测距的定位算法，可以达到良好的精度，但需要测量装置，不适合能量受限的无线传感器网络。本文分析了常用的非测距定位算法，并在此基础上提出了一种改进的基于序列的非测距定位算法，以提高无线传感器网络定位算法的性能。
절점정위시실현전감기망락응용적전제，공제절점정위오차성위보증망락정상운행적관건。채용기우측거적정위산법，가이체도량호적정도，단수요측량장치，불괄합능량수한적무선전감기망락。본문분석료상용적비측거정위산법，병재차기출상제출료일충개진적기우서렬적비측거정위산법，이제고무선전감기망락정위산법적성능。
Node position is the prerequisite in wireless sensor network applications,so the control of node position error becomes a key to ensure normal running of networks.Range-based position algorithm can achieve good accuracy,but it requires measuring devices,thus it is not appropriate for large-scale wireless sensor networks.This paper analyzes popular range-free position algorithms and proposes ad-vanced sequence-based range-free position algorithm to improve the performance of position algorithm in wireless sensor networks.