Analysis of single-point positioning precision in forestry using a G330 handheld GPS receiver

FENG Xiaona; XU Wenbing; TANG Mengping; WU Guangzheng

doi:10.11833/j.issn.2095-0756.2013.05.002

Volume 30 Issue 5

Sep. 2013

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FENG Xiaona, XU Wenbing, TANG Mengping, WU Guangzheng. Analysis of single-point positioning precision in forestry using a G330 handheld GPS receiver[J]. Journal of Zhejiang A&F University, 2013, 30(5): 640-647. doi: 10.11833/j.issn.2095-0756.2013.05.002

Citation:

FENG Xiaona, XU Wenbing, TANG Mengping, WU Guangzheng. Analysis of single-point positioning precision in forestry using a G330 handheld GPS receiver[J]. Journal of Zhejiang A&F University, 2013, 30(5): 640-647. doi: 10.11833/j.issn.2095-0756.2013.05.002

Analysis of single-point positioning precision in forestry using a G330 handheld GPS receiver

doi: 10.11833/j.issn.2095-0756.2013.05.002

1.
School of Environmental & Resource Sciences，Zhejiang A & F University，Lin’an 311300，Zhejiang， China

Funds:

国家自然科学基金资助项目（31170595）;浙江省科学技术面上项目（2009C32063）;浙江省教育厅一般项目（Y201119550）;浙江省森林生态系统碳循环与固碳减排重点实验室开放基金资助项目（KFJJ2012004）;浙江省高等学校优秀青年教师资助计划项目（浙教办高科［2010］175号）;浙江农林大学大学生科技创新项目（100310）

More Information

Corresponding author: XU Wenbing
Received Date: 2012-08-14
Rev Recd Date: 2012-09-17
Publish Date: 2013-10-20

Abstract

In a forested area of Mount Tianmu，the precision of single point positioning with a G330 handheld GPS receiver compared to an observed value by GPS-RTK（Real Time Kinematic） was analyzed and evaluated. Results showed that（1） for BJ54 planimetric coordinates，inner precision with 90.0% of the test points was less than 4.0 m，but for the vertical coordinates, precision was about 85.0% in less than 6 m.（2）Also，for BJ54 planimetric coordinates, the outside precision with 85.0%-90.0% of the points was less than 5.0 m，but for the vertical coordinates，precision of was about 87.2% in less than 10.0 m.（3）For a handheld GPS receiver with no coordinate conversion parameters，when systematic deviation was eliminated，the observation accuracy of single point positioning improved.（4）Additionally，single point positioning precision could be improved through simultaneous observation using two or more handheld GPS receivers.［Ch，7 fig. 1 tab. 16 ref.］
- forest mensuration,
- handheld GPS,
- single point positioning,
- systematic deviation,
- inner precision,
- outer precision,
- simultaneous observation

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Analysis of single-point positioning precision in forestry using a G330 handheld GPS receiver

1. School of Environmental & Resource Sciences，Zhejiang A & F University，Lin’an 311300，Zhejiang， China

Funds:

Corresponding author: XU Wenbing

Received Date: 2012-08-14

Rev Recd Date: 2012-09-17

Publish Date: 2013-10-20

Key words:

Abstract: In a forested area of Mount Tianmu，the precision of single point positioning with a G330 handheld GPS receiver compared to an observed value by GPS-RTK（Real Time Kinematic） was analyzed and evaluated. Results showed that（1） for BJ54 planimetric coordinates，inner precision with 90.0% of the test points was less than 4.0 m，but for the vertical coordinates, precision was about 85.0% in less than 6 m.（2）Also，for BJ54 planimetric coordinates, the outside precision with 85.0%-90.0% of the points was less than 5.0 m，but for the vertical coordinates，precision of was about 87.2% in less than 10.0 m.（3）For a handheld GPS receiver with no coordinate conversion parameters，when systematic deviation was eliminated，the observation accuracy of single point positioning improved.（4）Additionally，single point positioning precision could be improved through simultaneous observation using two or more handheld GPS receivers.［Ch，7 fig. 1 tab. 16 ref.］

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Analysis of single-point positioning precision in forestry using a G330 handheld GPS receiver

doi: 10.11833/j.issn.2095-0756.2013.05.002

Abstract

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通讯作者: 陈斌, bchen63@163.com

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