According to the data of GPS time comparison published by the laboratories (USNO, TAP, CRL) and BIPM in the time bulletins the long term frequency stability in the GPS time comparison are calculated and analysed in this paper.

• 根据国际上一些实验室(USNO、TAO、CRL)和国际计量局(BIPM)在时间公报上公布的GPS时间比对数据；对其长期频率稳定度进行了计算分析；结果如下: 1.；GPS时间比对的长期频率稳定度不受地域的影响；不同地区和不同卫星的结果都有明显的相似性;