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实践积累/专业领域/GNSS/RATIO.md
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RATIO
RATIO即整周模糊度分解后，次最小RMS与最小RMS的比值。即：
![RATIO RAT RMS RMS S RA 0 RATIO RAT RAT 1](Exported%20image%2020260407225341-0.png)
RATIO 反映了所确定出的整周未知数参数的可靠性，这一指标取决
于多种因素，既与观测值的质量有关，也与观测条件的好坏有关。
RATIO是反映基线质量好坏的最关键值，通常情况下，要求RATIO值
大于1.8。