4863
We first study the impact of the GNSS noise inflation on the covariance of the EKF outputs so as to compute a least square estimate of the potential variance jumps .
 feature of: EKF outputs, covariance; used for: least square estimate, variance jumps
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  EKF outputs, covariance; least square estimate, variance jumps 
Answer:
 feature of: EKF outputs, covariance; used for: least square estimate, variance jumps