Academician Liu Jingnan: The accuracy of Beidou can reach the centimeter level. Even the chief engineer of GPS has admitted that GPS is inferior to Beidou! The accuracy of Beidou is higher than that of the American GPS.刘经南院士：北斗精度可以达到厘米级，连GPS总师都承认GPS不如北斗！
北斗的精度比美国GPS高 。