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应用MagellanPromarxX CMGPS接收机在广东省新丰县小镇镇林区进行野外样地定位等试验 ,结果表明 ,林冠郁闭度、天线类型、天线高度对卫星信号的接收均有一定的影响 ;GPS在杉木林中基本能顺利定位 ;GPS数据与TM卫星影象套合误差小于一个象元 ;差分GPS定位技术在南方山区林业调查应用是可行的
The application of MagellanPromarxX CMGPS receiver in the field of small plots in Xiaofei Town, Xinfeng County, Guangdong Province showed that the forest canopy density, antenna type and antenna height had certain influence on the satellite signal reception. The forest can basically locate smoothly; the error between GPS data and TM satellite image is less than one pixel; and the differential GPS technology is feasible for the forestry investigation in southern mountainous areas