标称精度

采用GPS接收机标称精度进行估算，其结果也满足隧道控制网的要求。

When estimated by inherent standard deviations of GPS receivers , the accuracy of lateral piercing can also meet the needs of a horizontal tunnel control network .

手持式GPS的标称精度为10~15m，但在实际应用中其单点定位精度在无SA政策时仅为15~30m，因此在一定程度上限制了它的应用。

The PDA GPS standard precision is 10 ~ 15m , but in practical application its location precision of simple point without SA policy is only 15 ~ 30m . Therefore it is limited in the application on scientific research .

与国际数据分析中心给出的坐标与速度场标称精度进行了比对。

It compares the real accuracy with the marker precision by international data analysis centers .

平而精度和高程精度评价结果表明，精度验证区范围内的LiDAR数据完全能够满足标称的精度要求。

The evaluation results of the plane precision and height accuracy showed that the LiDAR data in the accuracy verification area is fully able to meet the nominal accuracy requirements . 2 .