计算机工程与应用
計算機工程與應用
계산궤공정여응용
Computer Engineering and Applications
2015年
22期
99-103
,共5页
定位节点接收的信号强度指示(RSSI)%权值%环境适应性%室内定位
定位節點接收的信號彊度指示(RSSI)%權值%環境適應性%室內定位
정위절점접수적신호강도지시(RSSI)%권치%배경괄응성%실내정위
Received Signal Strength Indication(RSSI)%weight%environmental adaptability%indoor localization
定位节点接收的信号强度指示(Received Signal Strength Indication,RSSI)值是室内指纹定位技术重要的元素之一。通过对定位节点接收到的信号强度值特性分析,提出了基于RSSI权值的室内定位算法。改进型RSSI权值计算公式以及权值指数α的提出,使得定位算法具有一定的环境适应性,能更灵活地运用于实际定位场景。经过一般实验场景验证,算法在定位精度上有较大的提升。
定位節點接收的信號彊度指示(Received Signal Strength Indication,RSSI)值是室內指紋定位技術重要的元素之一。通過對定位節點接收到的信號彊度值特性分析,提齣瞭基于RSSI權值的室內定位算法。改進型RSSI權值計算公式以及權值指數α的提齣,使得定位算法具有一定的環境適應性,能更靈活地運用于實際定位場景。經過一般實驗場景驗證,算法在定位精度上有較大的提升。
정위절점접수적신호강도지시(Received Signal Strength Indication,RSSI)치시실내지문정위기술중요적원소지일。통과대정위절점접수도적신호강도치특성분석,제출료기우RSSI권치적실내정위산법。개진형RSSI권치계산공식이급권치지수α적제출,사득정위산법구유일정적배경괄응성,능경령활지운용우실제정위장경。경과일반실험장경험증,산법재정위정도상유교대적제승。
The localization node received signal strength indication value is one of important element for indoor fingerprint localization technology. This paper through analyzing the characteristic of the localization node received signal strength value, proposes indoor localization based on RSSI-weights algorithm. The raising of improved RSSI-weight calculation formula and the weights index make the localization algorithm have the environmental adaptability, apply more flexible to the actual location scene. After general experiment scene verification, this algorithm has a great improvement in location accuracy.