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原文传递 Examining GPS Carrier-Phase Analyses to Evaluate the Accuracy of Frequency Transfer Using Data from NIST and PTB

题名：	Examining GPS Carrier-Phase Analyses to Evaluate the Accuracy of Frequency Transfer Using Data from NIST and PTB
作者：	Nelson, Lisa;Levine, Judah;
关键词：	DATA PROCESSING, ZDATA PROCESSINGZ, GLOBAL POSITIONING SYSTEM, ZGLOBAL POSITIONING SYSTEMZ, FREQUENCY STANDARDS, ZFREQUENCY STANDARDSZ, COMPARISON, ZCOMPARISONZ, ATMOSPHERE MODELS, ZATMOSPHERE MODELSZ, RECEIVERS, ZRECEIVERSZ, ERRORS, ZERRORSZ, ACCURACY, Z
摘要：	In recent work, comparisons were made between the primary frequency standards at the National Institute of Standards and Technology (NIST) and the Physikalisch-Technische Bundesanstalt (PTB) using dual-frequency geodetic receivers that measure the phase of the GPS carrier relative to the local standard. In this work we report on studies of the effects of data analysis lengths, bias vs. non-bias fixing, and troposphere estimation on the final solution. This was done in an effort to determine the effect of data merging routines and atmospheric modeling on these comparisons. Initial results indicate that these effects currently contribute to the error budget at parts in 10(exp 15). We also show initial results using two different analytical software packages for the NIST/PTB baseline. This analysis was made in an effort to lower the overall error budget of the comparison technique.
总页数：	10
报告类型：	科技报告