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Pixel-level Terrain Processing of the Martian Surface from Moderate Resolution Images of Tianwen-1
Liu, Dingxin; Yan, Wei; Liu, Jianjun +3 more
The moderate-resolution camera (MoRIC) of the Tianwen-1 orbiter, China's first Mars exploration mission, is a frame-imaging scheme color camera. However, generating a precise digital elevation model (DEM) from these images faces challenges due to the presence of featureless and repetitive regions on the Martian surface. Traditional photogrammetric…
Serverless Architecture for Data Processing and Detecting Anomalies with the Mars Express MARSIS Instrument
Titov, Dmitrij V.; Sánchez-Cano, Beatriz; Pacios, David +4 more
The Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) on board Mars Express has been sampling the topside ionosphere of Mars since mid-2005. The analysis of the main reflection (nadir) of the ionosphere through the ionograms provided by the MARSIS instrument is typically performed manually due to the high noise level in the lower…
VLBI Data Processing on Coronal Radio-sounding Experiments of Mars Express
Zhang, Peijin; Xiong, Ming; Xia, Bo +13 more
The ESA's Mars Express solar corona experiments were performed at two solar conjunctions in the years 2015 and 2017 by a number of radio telescopes in the European VLBI Network. This paper presents the methods to measure the frequency and phase fluctuations of the spacecraft radio signal, and the applications to study the characteristics of the pl…