Search Publications

A GPU-based phase tracking method for planetary radio science applications

Yan, Jianguo; Barriot, Jean-Pierre; Wang, Guangli +3 more

This paper introduces a phase tracking method with a computational algorithm for planetary radio science implemented on NVIDIA GPUs. In contrast to the phase-locked loop phase counting method used in traditional Doppler data processing, this method fits the tracking data with optimal parameters into the shape expressed by Taylor expansion. The dif…

A real-time, high-accuracy, hardware-based integrated parameter estimator for deep space navigation and planetary radio science experiments

Liu, Wei; Wang, Zhen; Jian, Nianchuan +9 more

Real-time, high-accuracy frequency-phase estimation is the critical mission of Doppler tracking, which is a primary technique for deep space spacecraft navigation and planetary radio science experiments. Usually, the analog intermediate frequency signal is digitalized and converted to baseband by signal processing hardware platforms called digital…