GPS DOP

GPS에 DOP라는 용어가 나오길래 무슨 용도의 용어인가 찾아보니...

DOP Value	Rating	Description
< 1	Ideal	Highest possible confidence level to be used for applications demanding the highest possible precision at all times.
1-2	Excellent	At this confidence level, positional measurements are considered accurate enough to meet all but the most sensitive applications.
2-5	Good	Represents a level that marks the minimum appropriate for making business decisions. Positional measurements could be used to make reliable in-route navigation suggestions to the user.
5-10	Moderate	Positional measurements could be used for calculations, but the fix quality could still be improved. A more open view of the sky is recommended.
10-20	Fair	Represents a low confidence level. Positional measurements should be discarded or used only to indicate a very rough estimate of the current location.
>20	Poor	At this level, measurements are inaccurate by as much as 300 meters with a 6-meter accurate device (50 DOP × 6 meters) and should be discarded.

[링크 : https://en.wikipedia.org/wiki/Dilution_of_precision_(navigation)]

정밀도의 희석? 읭?!?!

[링크 : http://endic.naver.com/enkrEntry.nhn?sLn=kr&entryId=d66d0304edab416ca0858c1e19ca4494]