%0 Journal Article
%T 基于不同参考框架的GPS卫星天线校验
%A 陈俊平
%A 胡一帆
%A 张帅
%A 刘姣
%J 同济大学学报(自然科学版)
%D 2018
%R 10.11908/j.issn.0253-374x.2018.10.018
%X 重新估计了基于不同参考框架的GPS卫星天线 PCO(相位中心偏差)和PCV(相位中心变化)参数.计算过程中，通过固定测站天线的PCO和PCV，并将测站坐标强约束至不同的参考框架之下，降低了GPS卫星天线参数和接收机天线参数以及参考框架参数之间的相关性.结果显示，基于不同参考框架的同类型卫星天线PCV差异的平均值为0.726 mm；与IGS发布值差异的平均值为0.844 mm；基于新公布的IGS14参考框架的GPS卫星天线PCO估计结果与IGS (国际GNSS服务）发布值差异的平均值为-14.4 mm，基于IGb08参考框架的卫星天线PCO估计结果与IGS发布值差异的平均值为-16.8 mm.以上结果表明，本措施提高了GPS卫星相位中心PCO/PCV的一致性，从而也能提高GNSS(global navigation satellite system) 技术用于框架传递的连续性.</br>GPS satellites antenna PCO(phase center offset) and PCV(phase center variation) were re estimated based on station coordinates under different reference frames. The correlations among GPS satellite antenna parameters, receiver antenna parameters and reference frame scales were reduced by fixing receiver antenna PCO/PCV and constraining station coordinate to given reference frame tightly. Results show that the mean difference of block specific satellite antenna PCV based on different reference frames is 0.726 mm. Comparing with the satellite antenna PCV released by IGS based on IGS00, the mean block specific PCV difference between IGS value and the re estimated is 0.844 mm. Comparing to the IGS values, GPS re estimated satellite antenna PCO has an average bias of -14.4 mm and -16.8 mm for the re estimated satellite antenna PCO based on IGS14 and IGS08, respectively. The re estimated PCO/PCV values could improve their iner consistency and contribute to the GNSS based reference frames densification
%K 卫星天线 天线相位中心偏差 天线相位中心变化 校验 参考框架 基准转换&lt
%K /br&gt
%K satellite antenna phase center offset phase center variation calibration reference frame datum transformation
%U http://tjxb.cnjournals.cn/ch/reader/view_abstract.aspx?file_no=17395&flag=1