CAJ | 학술논문

为了提高传统DV-Hop算法的定位精度，推动该算法的进一步发展，文中从平均跳距计算和未知节点坐标计算两个阶段入手对传统DV-Hop算法进行改进，提出了一种基于RSSI加权修正的平均跳距计算方法和一种基于最小二乘法修正的未知节点坐标计算方法。为了验证算法改进的有效性，在Matlab中进行了仿真实验。实验结果表明：文中算法相对于传统DV-Hop算法测距精度提高了约20%；定位精度较传统DV-Hop算法提高了约30%。理论和实践均表明：在同等条件下文中的改进算法与传统DV-Hop算法相比具有更高的定位精度。
위료제고전통DV-Hop산법적정위정도，추동해산법적진일보발전，문중종평균도거계산화미지절점좌표계산량개계단입수대전통DV-Hop산법진행개진，제출료일충기우RSSI가권수정적평균도거계산방법화일충기우최소이승법수정적미지절점좌표계산방법。위료험증산법개진적유효성，재Matlab중진행료방진실험。실험결과표명：문중산법상대우전통DV-Hop산법측거정도제고료약20%；정위정도교전통DV-Hop산법제고료약30%。이론화실천균표명：재동등조건하문중적개진산법여전통DV-Hop산법상비구유경고적정위정도。
In order to improve the positioning accuracy of the traditional DV-Hop algorithm,promoting the further development of the al-gorithm,the traditional DV-Hop algorithm is improved in two phase of computing average jump-distance and unknown nodes coordinate in this paper,put forward a computing average jump-distance method based on RSSI weighted correction and unknown nodes coordinate computing method based on correction method of least squares. In order to validate the improved method is effective,carry out the simula-tion experiment in Matlab software. The experimental results show that this algorithm is about 20% higher than the traditional DV-Hop algorithm in ranging accuracy,30% higher than the traditional DV-Hop algorithm in positioning accuracy. Theory and practice have proved that in same conditions,the improved algorithm has higher accuracy compared with the traditional DV-Hop algorithm.