Inertial Pocket Navigation System: Unaided 3D Positioning.
Inertial Pocket Navigation System: Unaided 3D Positioning.
复制标题
惯性口袋导航系统:独立的3D定位。
DOI:
10.3390/s150409156
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发表时间:
2015-04-17
期刊:
影响因子:
--
通讯作者:
Diaz EM
中科院分区:
文献类型:
--
作者:
Diaz EM
Inertial navigation systems use dead-reckoning to estimate the pedestrian's position. There are two types of pedestrian dead-reckoning, the strapdown algorithm and the step-and-heading approach. Unlike the strapdown algorithm, which consists of the double integration of the three orthogonal accelerometer readings, the step-and-heading approach lacks the vertical displacement estimation. We propose the first step-and-heading approach based on unaided inertial data solving 3D positioning. We present a step detector for steps up and down and a novel vertical displacement estimator. Our navigation system uses the sensor introduced in the front pocket of the trousers, a likely location of a smartphone. The proposed algorithms are based on the opening angle of the leg or pitch angle. We analyzed our step detector and compared it with the state-of-the-art, as well as our already proposed step length estimator. Lastly, we assessed our vertical displacement estimator in a real-world scenario. We found that our algorithms outperform the literature step and heading algorithms and solve 3D positioning using unaided inertial data. Additionally, we found that with the pitch angle, five activities are distinguishable: standing, sitting, walking, walking up stairs and walking down stairs. This information complements the pedestrian location and is of interest for applications, such as elderly care.
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影响因子:
35.6
作者:
Harle, Robert
通讯作者:
Harle, Robert
DOI:
10.1115/1.1372322
发表时间:
2001-06-01
影响因子:
1.7
作者:
Kuo, AD
通讯作者:
Kuo, AD
DOI:
10.3390/s120708507
发表时间:
2012
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Renaudin V;Susi M;Lachapelle G
通讯作者:
Lachapelle G
DOI:
10.1109/tim.2002.807986
发表时间:
2003-02-01
影响因子:
5.6
作者:
Jirawimut, R;Ptasinski, P;Balachandran, W
通讯作者:
Balachandran, W