1.前言日本的人造卫星“大偶”“诞生”“新生”等的出现说明了其宇宙研究工作业已进入到用人造卫星进行正式科学探测的时代。这项工作的当务之急就是正确而且迅速地得到卫星的轨道信息。日本现在采用的是三站多普勒跟踪方式。虽然由三个站的速度信息可以决定卫星的轨道,但是如果再加上有距离信息的话,便可以大幅度地提高精度,而且可以在短时间内进行处理。本公司在东京大学的指导下,集本公司电子技术之精华完成了这部适合于科学卫星 1. Preface The advent of Japanese “big mate”, “birth” and “new life” shows that the cosmological research has entered an era of formal scientific exploration using satellites. The priority of this task is to get the orbit information of the satellite correctly and rapidly. Japan is now using three stations Doppler tracking. Although the satellite’s orbit can be determined by the speed information of the three stations, the accuracy can be greatly improved by adding the distance information, and the satellite can be processed in a short period of time. The Company under the guidance of the University of Tokyo, the company set the essence of electronic technology completed this suitable for science satellite