【作者】 何月芳； 张漫； 张博； 刘卉；

【Author】 He Yuefang, Zhang Man, Zhang Bo, Liu Hui (Key Laboratory of Modern Precision Agriculture System Integration Research, China Agricultural University, Ministry of Education, Beijing 100083, China)

【机构】 中国农业大学“现代精细农业系统集成研究”教育部重点实验室；

【摘要】 在精细农业实施中,对所采集的各种田间数据、信息的实施依赖于精确的位置信息。而GPS是进行定位测量最快速、最便捷的有效方式,已经成为精细农业的核心技术之一。本文详细介绍了精细农业中常用的卫星差分、信标差分、自主差分和虚拟基站差分(VRS)等4种GPS差分技术,以探讨在我国精细农业中GPS差分适用技术。采用Trimble公司的亚米级GPS接收机AgGPS132对信标差分、自主差分和VRS差分等进行了单点定位试验。试验结果表明,AgGPS132的VRS差分精度最高,而精度相对较差的信标差分也达到亚米级精度,这三种方式都能较好满足精细农业的要求。更多还原

【Abstract】 The collection and analysis of filed information in Precision Agriculture is based on precise position. GPS is one of the most effective methods in positioning and has played an important role for Precision Agriculture. In this study, four DGPS techniques were discussed to find feasible DGPS techniques for Precision Agriculture in our country. The tests indicated that the accuracy of AgGPS 132 with DGPS was kept within 1m and had good practicality for Precision Agriculture更多还原