New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

采样率越高精度越高吗？ #36

Open

XiaoGongWei opened this issue Oct 25, 2021 · 1 comment

Owner

XiaoGongWei commented Oct 25, 2021

您好，为什么同样都是1个小时的数据，一个是30秒历元间隔，一个是1秒的历元间隔，1秒的计算出来的误差比30秒的误差还大呢？

答复：你这是1h数据对比不同分辨率下PPP精度，差异10mm很正常。此时PPP没收敛完全，就算完全收敛，受到质量控制差异10mm也正常。如果没有质量影响，历元间隔越小（采样率过大），精度就会更高。

Owner Author

XiaoGongWei commented Oct 25, 2021

可能是滤波原因吧，各个历元之间解算结果不是独立的，具有相关性。其中一个历元解算异常，后面历元也会受到影响。

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment