本文選題：Taylor級(jí)數(shù)展開 + 閾值篩選��； 參考：《計(jì)算機(jī)工程與應(yīng)用》2017年02期

【摘要】：針對(duì)無線信號(hào)在煤礦巷道中傳播時(shí)由于多徑效應(yīng)明顯,而導(dǎo)致定位精度不高的問題,通過對(duì)UWB定位模型進(jìn)行分析,提出一種基于Taylor級(jí)數(shù)展開的UWB(Ultra Wide-Band)定位算法�？紤]Taylor級(jí)數(shù)迭代算法對(duì)初始值依賴性很高的問題,首先采用三點(diǎn)直接定位算法對(duì)目標(biāo)節(jié)點(diǎn)進(jìn)行粗定位,然后通過閾值篩選和權(quán)重計(jì)算產(chǎn)生Taylor定位的初始值,再進(jìn)行迭代求解,進(jìn)行第二次精確定位。一個(gè)基于UWB無線定位系統(tǒng)平臺(tái)對(duì)該算法進(jìn)行了驗(yàn)證,結(jié)果表明該算法可以保證最大定位誤差為0.4 m,基本滿足井下定位的需要。
[Abstract]:Aiming at the problem that the wireless signal propagates in the coal mine roadway due to the obvious multipath effect, the positioning accuracy is not high. Through the analysis of the UWB location model, a UWBU Ultra Wide-Band-based location algorithm based on Taylor series expansion is proposed. Considering the high dependence of Taylor series iteration algorithm on initial value, firstly, three point direct localization algorithm is used to locate the target node rough, then the initial value of Taylor location is generated by threshold screening and weight calculation, and then the iterative solution is carried out. Carry out a second accurate positioning. The algorithm is verified based on a UWB wireless positioning system platform. The results show that the algorithm can guarantee the maximum positioning error of 0.4 m and basically meet the need of downhole positioning.
【作者單位】： 中南大學(xué)物理與電子學(xué)院;
【基金】：中南大學(xué)中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金資助(No.2014zzts147)
【分類號(hào)】：TN925

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