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立地类型和定位模式对精准林业GPS定位的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2014年06期
Page:
72-76
Column:
研究论文
publishdate:
2014-12-09

Article Info:/Info

Title:
Effects of the site condition and positioning mode on GPS performance for precision forestry
Article ID:
1000-2006(2014)06-0072-05
Author(s):
ZHANG Huichun ZHOU Hongping ZHENG Jiaqiang
College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China
Keywords:
precision forestry site condition positioning mode positioning accuracy positioning precision
Classification number :
P228.4; P207
DOI:
10.3969/j.issn.1000-2006.2014.06.014
Document Code:
A
Abstract:
The main purpose of the study was to test GPS equipment receivers used for open sky and forest condition with non differential and RBN differential mode, and to quantify satellite availability, PDOP, accuracy, and precision under different factors, the objective being to assist GPS's application in precision forestry. Results of stationary test showed that the RBN DGPS mode improved the accuracy and precision both in open sky and forest condition. Comparing to the open sky, forestry GPS application decreased the number of satellites availability by 2-3, increased PDOP by 0.8-1.2, reduced accuracy by 0.30-0.31 m, and reduced precision by 0.92-1.01 m. In mobile test, analysis of variance(ANOVA)with SPSS16.0 was used to clarify the effects of positioning mode and site condition on the precision of GPS. According to the ANOVA test, the GPS positioning perimeter and area were affected significantly by positioning mode, site condition and their interaction. Based on the research, it is clearly possible to obtain good accuracy of a RBN GPS in forest, and forest observational conditions made extremely different conditions for GPS observation owing to forestry canopy causing strong multipath effect and satellites signals reception.

References

[1] 赵茂程,郑加强,佘光辉. 数据融合技术及其在林业中的应用[J].南京林业大学学报:自然科学版,2005,29(6):114-118. Zhao M C,Zheng J Q,She G H. Data fusion and its applications in forestry [J]. Journal of Nanjing Forestry University:Natural Sciences Edition,2005,29(6):114-118.
[2] 王亮,郑加柱,魏浩翰. 区域大气可降水量变化的地基GPS探测研究[J].南京林业大学学报:自然科学版,2013,37(1):168-172. Wang L,Zheng J Z,Wei H H. Detection of PWV change in winter by ground-based GPS[J].Journal of Nanjing Forestry University:Natural Sciences Edition,2013,37(1):168-172.
[3] 邓小蕾,李民赞,武佳,等. 集成GPRS、GPS、ZigBee的土壤水分移动监测系统[J].农业工程学报,2012, 28(9): 130-135. Deng X L, Li M Z, Wu J, et al.Development of mobile soil moisture monitoring system integrated with GPRS, GPS and ZigBee[J]. Transactions of the Chinese Society of Agricultural Engineering, 2012, 28(9): 130-135.
[4] Katsunori Nakamura, Mamoru Takehana,Tsuneo Hagaki, 等. 利用近红外彩色成像技术监测松萎蔫病[J]. 南京林业大学学报:自然科学版,2011,35(4):150-151. Katsunori Nakamura, Mamoru Takehana,Tsuneo hagaki, et al. Detection of pine wilt-damaged trees using near-infrared color photograph[J].Journal of Nanjing Forestry University:Natural Sciences Edition,2011,35(4):150-151.
[5] 刘永霞,冯仲科,王小昆,等. 基于DGPS的林业信息采集系统的设计和实现[J].计算机工程与应用,2005(4): 192-194. Liu Y X,Feng Z K,Wang X K, et al.The design and implementation of forestry information collecting system based on DGPS[J]. Computer Engineering and Applications, 2005(4): 192-194.
[6] 李建平,林妙玲. 自动导航技术在农业工程中的应用研究进展[J].农业工程学报,2006,21(9):232-236. Li J P, Lin M L. Research progress of automatic guidance technologies applied in agricultural engineering[J]. Transactions of the CSAE, 2006,22(9):232-236.
[7] Valbuena R, Mauro F, Rodriguez-Solano R, et al. Accuracy and precision of GPS receivers under forest canopies in a mountainous environment[J]. Spanish Journal of Agricultural Research, 2010, 8(4): 1047-1057.
[8] Piedallu C, Gégout J. Effects of forest environment and survey protocol on GPS accuracy[J]. Photogrammetric Engineering and Remote Sensing, 2005, 71(9): 1071-1078.
[9] Deckert C, Bolstad P V. Forest canopy, terrain, and distance effects on global positioning system point accuracy[J]. Photogrammetric Engineering and Remote Sensing, 2006, 62(3): 317-321.
[10] Wing M G. Consumer-grade GPS receiver measurement accuracy in varying forest conditions [J]. Research Journal of Forestry, 2011, 5(2): 78-88.
[11] 桑金,张铁军. 中国沿海RBN2DGPS系统的建立及性能评定[J].测绘通报,2002(11): 11-14 Sang J, Zhang T J. The establishment and evaluation of Chinese RBN/ DGPS system [J]. Bulletin of Surveying and Mapping, 2002(11): 11-14.
[12] 张慧春,郑加强,周宏平.精准林业GPS信标差分定位精度分析[J].农业工程学报,2011,27(7):210-214 Zhang H C, Zheng J Q, Zhou H P. Positioning accuracy analysis of RBN DGPS applied in precision forestry [J]. Transactions of the CSAE, 2011,27(7):210-214.
[13] Ordóñez Galán C, Rodríguez Pérez J R, García Cortés S, et al. Analysis of the influence of forestry environments on the accuracy of GPS measurements by means of recurrent neural networks[J]. Mathematical and Computer Modelling, 2013, 57(7):2016-2023.
[14] 张淼艳,张军,朱衍波. 卫星导航系统HDOP和VDOP的研究[J].遥测遥控,2009,30(2):6-12. Zhang M Y, Zhang J, Zhu Y B. Research on the HDOP and VDOP of satellite navigation systems [J]. Journal of Telemetry,Tracking and Command,2009,30(2):6-12.
[15] 许峻峰,许秉信. DGPS真值测量系统主要指标的选定[J].火力与指挥控制,2007,32(8):26-29 Xu J F,Xu B X. Choosing of main indexes for DGPS true value measurement system [J]. Fire Control and Command Control, 2007,32(8):26-29.
[16] Soycan M. A quality evaluation of precise point positioning within the bernese GPS software version 5.0[J]. The Arabian Journal for Science and Engineering,2012,37(1):147-162.

Last Update: 2014-12-31