Relativity and the global positioning system

被引：75

作者：

Ashby, N ^{[1
]}

机构：

[1] Univ Colorado, Boulder, CO 80309 USA

[2] NIST, Boulder, CO USA

来源：

PHYSICS TODAY | 2002年 / 55卷 / 05期

关键词：

D O I：

10.1063/1.1485583

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Effects of relativistic principles on global positioning system (GPS) is discussed. GPS navigation works on a simple application of the second postulate of special relativity. Effects such as second-order Doppler shift and gravitational blueshift of an orbiting atomic clock can cause navigational errors of more than 11 km, quickly rendering the system useless. Other effects include the Saganc effect, differences between coordinate distances and relativistically invariant distances and the Shapiro time delay.

引用

页码：41 / 47

页数：7

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