Research and Verification of a Novel Interferometry Method by Joint Processing of Downlink Pseudo-Noise Ranging and DOR Signals for Deep Space Exploration by Weitao Lu, Min Fan, Lue Chen, Dezhen Xu, Yujia Zhang, Tianpeng Ren

“…Facing this problem, we analyze the delta Differential One-way Range (ΔDOR) error budget of the X-band of the China Deep Space Network (CDSN). Then, we propose a novel interferometry method that detunes one group of DOR beacons and reuses the clock components of regenerative pseudo-code ranging signals for interferometry delay estimation. …”
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Method and Application of High-Precision Open-Loop Velocity Measurement of Tianwen-1 Probe by Lue Chen, Haitao Li, Fei Fan, Haijun Man, Jing Kong, Qianqian Han, Songtao Han, Weitao Lu, Mei Wang, Jinsong Ping

“…At first, relying on space–ground TT&C resources of the Tianwen-1 probe, the paper designs an open-loop velocity measurement strategy based on China’s deep-space network. Then, it proposes a core algorithm of open-loop velocity measurement based on local cross-correlation reconstruction to obtain instantaneous Doppler frequency observables. …”
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Preliminary Estimations of Mars Atmospheric and Ionospheric Profiles from Tianwen-1 Radio Occultation One-Way, Two-Way, and Three-Way Observations by Min Liu, Lue Chen, Nianchuan Jian, Peng Guo, Jing Kong, Mei Wang, Qianqian Han, Jinsong Ping, Mengjie Wu

“…We carried out observations based on the Chinese Deep Space Network, and one-way, two-way, and three-way modes were used for Doppler observations from the Tianwen-1 spacecraft. …”
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