一种新的射电源表综合方法

A NEW METHOD TO CONSTRUCT THE COMPILATION CATALOGUE OF EXTRAGALATIC RADIO SOURCES

本文提出利用正交完备函数系拟合射电源表的局部系统差，并通过选择初始星表确定综合射电源表系统的轴方向，在综合计算时以射电源表包含的所有源坐标决定其轴方向．整个综合过程概念清晰，计算量较小．检验结果表明，用新方法得到的综合射电源表可靠性与稳定性都很好．

In this paper,the orthogonal complete functions are used to compute the regional deformation of the catalogues of extragalatic radio sources during the compilation procedure. The directions of the compilation catalogue are given by the initial catalogue, which is choosed among the individual catalogues. The directions of each individual catalogUe are determined by the positions of all radio sources of the catalogue. Apart from having a simple compilation procedure, the new method costs only little computer time. The results of examining show that the compilation catalogues obtained with the new method are steady and reliable.