Performance comparison of single and multi-GNSS receivers under agricultural fields in Korea
Performance comparison of single and multi-GNSS receivers under agricultural fields in Korea
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韩国农田下单一和多 GNSS 接收机的性能比较
DOI：
10.1016/j.eaef.2015.09.002
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发表时间：
2016
影响因子：
--
通讯作者：
Soon
中科院分区：
文献类型：
--
作者：
Md Shaha Nur Kabir;Ming;Nam;Sun;Yong;N. Noguchi;Soon
本研究的目的是评估单gnss接收机和多gnss接收机的性能，并研究多gnss接收机在不同模式下对韩国典型农业场所（如开阔田野、果园和山区）静止和运动条件下定位评估的不同能力。对单gnss接收机（Model: R100, Hemisphere DGPS）进行差分校正后的平稳性测试，发现在开阔地、果园和山区，两次距离均方根值（2DRMS）分别为0.162 m、0.196 m和1.720 m。对于采用精确点定位（PPP）模式的多GNSS接收机（Model: SIGMA-G3T, JAVAD GNSS Inc.），在野外、果园和山区，固定模糊载波相位差（RTK）与准天顶卫星系统（QZSS）信号的2DRMS值分别为0.077 m、0.162 m和0.929 m。在裸地、果园和山区，单gnss接收机移动测试的均方根误差（RMSE）值分别为0.168 m、0.221 m和1.372 m。对于PPP模式的多gnss接收机，在开阔地、果园和山区，QZSS信号pd的RMSE值分别为0.152 m、0.182 m和1.13 m。在所有情况下，多gnss接收器跟踪的卫星数量都大于单gnss接收器。本研究提供了多gnss接收机的性能和精度，并与单gnss接收机进行了比较，有助于在各种农业条件下选择合适的接收机和方法。
Objective of this research was to evaluate the performance of single and multi-GNSS receivers and investigate the different capability under different modes of the multi-GNSS receiver for positioning assessment under stationary and moving conditions in typical Korean agricultural sites such as open field, orchard, and mountainous area. During stationary tests of the single-GNSS receiver (Model: R100, Hemisphere DGPS) with differential correction, the Twice the Distance Root Mean Square values (2DRMS) values were found as 0.162 m, 0.196 m, and 1.720 m in open field, orchard, and mountainous area, respectively. For multi-GNSS receiver (Model: SIGMA-G3T, JAVAD GNSS Inc.) with Precise Point Positioning (PPP) mode, the 2DRMS values were found as 0.077 m, 0.162 m, and 0.929 m for carrier phase differential (RTK) with fixed ambiguities (pd) with QZSS (Quasi-Zenith Satellite System) signal in open field, orchard, and mountainous area, respectively. During the moving tests of the single-GNSS receiver, the Root Mean Square Error (RMSE) values were found as 0.168 m, 0.221 m, and 1.372 m in open field, orchard, and mountainous area, respectively. For multi-GNSS receiver with PPP mode, the RMSE values were found as 0.152 m, 0.182 m, and 1.13 m for pd with QZSS signal in open field, orchard, and mountainous area, respectively. Number of satellites tracked by the multi-GNSS receiver was greater than the single-GNSS receiver in all cases. This research provides capability and accuracy of a multi-GNSS receiver and comparison with a single-GNSS, which would be helpful for selecting appropriate receivers and methods in various agricultural conditions.