【摘要】 该研究旨在利用全球定位系统GPS、借助G IS系统和遥感技术RS的统计和结合功能,通过多年地面观测工作和卫星影像的印证和草地专家系统分析,通过在GPS相关接收的芯片实现中改进m序列发生器的结构,实现草地信息获取,建立草地估产系统。利用该系统对草原进行估产的结果表明:所设计的各数据接口工作正常,估产结果与实测结果有很好的吻合度,且估产精度有所提高,使小范围内所获研究结果和草地视图信息得以外延和扩展。更多还原

【Abstract】 A large-scale grassland yield estimation system was established by using the 3S(RS,GPS,GIS)(technology).With observations on the ground and satellites view confirmation or grassland expert system(analysis),a GPS coherent receiving chip was used in the system and the traditional m-sequencer was improved.It realizes the information obtaining for grassland yield,and builds a grassland yield estimation system.The estimation by the system shows that the designed data interfaces work properly,the estimated results are well consistent with the measured results and the estimation accuracy is improved.The new system expands and stretches searching consequence as well as pasture view map information within small scope towards wide scope at deep(level).更多还原