给出对区域GPS大地网进行解算或改造的最小约束法。几种不同约束解集的比对结果表明:最小约束法是一种区域GPS大地网在地球参考框架中表达的最优方法。
Aiming at the basic requirement of maintenance of Terrestrial Reference Frame(TRF),the deficiency in data-processing for regional GPS Geodetic Network(Geo-Net) is analyzed currently and then the minimum constraints(MC) approach to solve or reconstruct the solution of regional GPS Geo-Net is described.Through comparing several constrained solutions,the results show that the MC approach is an optimal method to express the regional GPS Geo-Net in TRF finally.