| 摘要: |
| 结合GPS、惯性导航技术以及超宽带（UWB）技术，提出基于定位信号数量和信号强度的定位方法切换策略.根据切换策略，将伪距测量、Chan-Taylor协同算法以及行人航迹推算算法进行松散组合，得到优化后的定位算法.通过实验验证了切换策略的可行性，优化了室内外交界区域的定位轨迹，为室内外无缝定位技术提供了思路. |
| 关键词: 超宽带(UWB) Chan-Taylor协同算法 手机GPS 室内外无缝定位 |
| DOI：10.3969/J.ISSN.1000-5137.2021.01.012 |
| 分类号:TN92 |
| 基金项目:上海市自然科学基金（16ZR1424500） |
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| An improved algorithm for indoor and outdoor seamless positioning based on GPS and ultra-wide band |
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WANG Yuhang1,2, LI Li1, ZHENG Zhengqi2, ZHAO Kun2
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1.College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China;2.College of Communications and Electronic Engineering, East China Normal University, Shanghai 200241, China
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| Abstract: |
| A switching strategy of positioning method combining GPS,inertial navigation with ultra-wide band(UWB)based on signal quantity and signal strength was proposed in this paper. An optimized positioning algorithm was provided based on loose combination of technology of psecudo-range measurement, Chan-Taylor collaborative algorithm and pedestrian dead reckoning according to the strategy above. The experiment result showed that the switching strategy was feasible and the positioning trajectory of the connection area was optimized,which provided a novel idea for indoor and outdoor seamless positioning technology. |
| Key words: ultra-wide band(UWB) Chan-Taylor collaborative algorithm GPS based on smart phone indoor and outdoor seamless positioning |
