CAJ | 학술논문

针对传统DV—Hop算法直接选取最近1个信标节点的平均跳距作为定位参数，在获知3个或更多信标节点的欧氏距离时利用三边测量法对未知节点硬性定位，导致定位误差较大和覆盖率降低的问题，提出了1种基于三角重组位置修正的DV—Hop混合定位算法。仿真结果表明，与传统的DV—Hop算法相比，改进算法无需附加额外特定硬件开销，有效地提高节点定位精度和覆盖率，充分证明其有效性、实用性和可行性。
침대전통DV—Hop산법직접선취최근1개신표절점적평균도거작위정위삼수，재획지3개혹경다신표절점적구씨거리시이용삼변측량법대미지절점경성정위，도치정위오차교대화복개솔강저적문제，제출료1충기우삼각중조위치수정적DV—Hop혼합정위산법。방진결과표명，여전통적DV—Hop산법상비，개진산법무수부가액외특정경건개소，유효지제고절점정위정도화복개솔，충분증명기유효성、실용성화가행성。
A novel mixed DV - ttop localization algorithm based on correction in position of the triangle restructuring is brought fo ward, aiming at the traditional DV - Hop algorithm d/rectly chooses only the average hop distance of the closest anchor node as positio- ning parameter and forcing to determine the position of the unknown nodes by using the trilateral measuring method when the distance of three or more beacon nodes is learned , which will lead to larger error in position and reduce the fraction of coverage. The simulation resuits show that the improved algorithm can improve the positioning accuracy and the fraction of coverage effectively without increasing hardware consumption in nodes comparing with traditional DV - Hop algorithm, which has adequately proved its validity, practicability and feasibility.