“新视野”号多普勒频率数据评估

Evaluation of New Horizons's Doppler frequency data

NASA于2006年发射的"新视野"号探测器于2015年7月14日飞掠冥王星,借此机会,中国科学院国家天文台行星无线电科学研究团组选取我国上海佘山观测站和黑龙江佳木斯深空探测基地的两台60m级射电望远镜,开始了对"新视野"号下行信号的接收及后续分析处理研究工作.利用东南大学研制的无线电科学接收机在黑龙江佳木斯完成了测量工作,利用接收到的探测器多普勒信号对其精度进行了分析比较,并尝试了不同的处理方法.最后本文对我国设备的深空多普勒测量数据的分辨能力进行了评估.

After nine years travel,New Horizons launched in 2006 by NASA flew by Pluto on July 14,2015.New Horizons has therefore become the first spacecraft to ever travel to Pluto.Planetary radio research club from the Chinese Academy of Sciences took this opportunity to begin to measure signals from New Horizons with the 60-meter radio telescopes at Sheshan Shanghai Observation Station and Heilongjiang Jiamusi deep space exploration base.The reception and analysis work is done with Radio Science Receiver developed by Southeast University.Measurement results include Doppler frequency and phase information of the downlink signal.Accuracy evaluation of the measurements is also evaluated.