Dynamic performance of global positioning system velocity sensor for extremely accurate positioning
Dynamic performance of global positioning system velocity sensor for extremely accurate positioning
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DOI：
10.1016/j.biosystemseng.2007.01.010
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发表时间：
2007-05-01
影响因子：
5.1
通讯作者：
Itani, K.
中科院分区：
文献类型：
--
作者：
Chosa, T.;Omine, M.;Itani, K.
这项研究的目的是建立一个廉价和非常准确的定位系统。本文介绍了一种由低成本单频GPS接收机和单板计算机组成的全球定位系统（GPS）速度传感器。通过夹具试验和车载试验，验证了该传感器的动态性能，探讨了其用于定位的可能性。在整个夹具和车载测试中，使用GPS速度传感器比使用实时动态GPS更准确地测量速度。根据夹具测试，超过90%的速度误差小于0.05 m/s。此外，超过70%的误差小于2.87。还可以通过对来自全球定位系统速度传感器的速度进行积分来确定位置。虽然观测到了累积误差和不规则误差，但经过不规则误差补偿后，定位精度仍高于差分GPS，如何消除累积误差和如何初步确定绝对位置是减小误差需要进一步研究的问题。(C)2007年IAgRE。All rights reserved.爱思唯尔有限公司出版
The aim of this research was to establish an inexpensive and extremely accurate positioning system. This report-focuses on a global positioning system (GPS) velocity sensor, which consists of a low-cost single-frequency GPS receiver and a single-board computer. Its dynamic performance was confirmed and the possibility of using it for positioning is discussed through fixture and on-vehicle tests.The GPS velocity sensor measured velocity accurately. Velocity was measured more accurately with the GPS velocity sensor than with real-time kinematic GPS throughout the fixture and on-vehicle tests. More than 90% of the error in speed was less than 0.05 m/s according to the fixture test. Also, more than 70% of the error was less than 2.87. It was also possible to determine position by integrating velocity from the GPS velocity sensor. Although accumulating and irregular errors were observed, the accuracy of positioning was higher than with differential GPS after irregular errors were compensated for.Problems for further study to reduce error are how to cancel out accumulated errors and how to initially determine the absolute position. (C) 2007 IAgrE. All rights reserved. Published by Elsevier Ltd