历元 [
lì yuán]
[天] epoch
- 在说明一个天文物体的位置是,我们还要参考他所引用的“标准历元”;
Positions of astronomical objects are conventionally reported with reference to a "standard epoch"; - 阐述了小波分析技术用于强污染GPS单历元形变信号处理的基本原理及其实现方法。
Wavelet theory is efficient as an adequate tool for analyzing single epoch GPS deformation signal. In this paper, wavelet analysis technique on gross error detection and recovery is advanced. - 在实际的应用中,我们经常需要在这两种历元之间进行转换,而skymap的就提供了这种转换工具。
The need often arises to precess coordinates from one epoch to another, and SkyMap provides a tool to do that conversion.
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