【摘要】：針對Active Bat室內(nèi)超聲波位方法中定位精度受環(huán)境溫度、硬件延時誤差、時間同步誤差等的影響,提出了改進的Active Bat室內(nèi)超聲波定位方法。該方法在Active Bat室內(nèi)超聲波定位系統(tǒng)結(jié)構(gòu)基礎(chǔ)上設(shè)立一個參考節(jié)點,通過參考節(jié)點定位坐標與實際位置坐標獲取位置誤差修正數(shù),修正定位終端定位誤差,以提高定位精度。室內(nèi)環(huán)境下進行實驗數(shù)據(jù)采集、解算、對比分析,實驗驗證表明,常規(guī)的Active Bat室內(nèi)超聲波定位定位平均誤差為6.93cm;該方法定位平均誤差為1.86cm。該方法可以有效提高室內(nèi)定位精度,定位精度提高了接近73.16%。
[Abstract]:In view of the influence of environment temperature, hardware delay error and time synchronization error on the positioning accuracy of Active Bat indoor ultrasonic positioning method, an improved Active Bat indoor ultrasonic positioning method is proposed. Based on the structure of Active Bat indoor ultrasonic positioning system, a reference node is set up. The position error correction number is obtained from the reference node positioning coordinate and the actual position coordinate, and the positioning error of the positioning terminal is corrected to improve the positioning accuracy. The experimental data are collected, calculated and compared in indoor environment. The experimental results show that the average error of conventional Active Bat indoor ultrasonic positioning is 6.93 cm, and the average error of this method is 1.86 cm. This method can effectively improve the accuracy of indoor positioning, and improve the accuracy of positioning by 73.16.
【作者單位】： 南昌大學信息工程學院;南昌大學空間科學與技術(shù)研究院;
【基金】：國家自然科學基金項目資助(41504026);國家自然科學基金項目資助(41374039)
【分類號】：TB559

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本文編號：2231139