%0 Journal Article
%A LIU Hui
%A ZHANG Hai-lin
%A ZHANG Zhao-wei
%T Joint-Detection Algorithm for High Dynamic Doppler in Deep-Space Communications
%D 2015
%R 10.13190/j.jbupt.2015.04.002
%J Journal of Beijing University of Posts and Telecommunications
%P 6-9
%V 38
%N 4
%X <p>Under low signal-to-noise ratio in deep-space communications, a joint-detection algorithm was developed for the high dynamic Doppler-shift. This algorithm uses three combination periods to narrow the search range, increasing the acquisition probability for Doppler-shift. To obtain the increase of acquisition probability in a closed-form expression, the impact of search range on acquisition probability was studied. Analysis and its simulation show that this algorithm can efficiently increase the acquisition probability and decrease the acquisition bias under the very low signal-to-noise ratio and high dynamic Doppler-shift.</p>
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2015.04.002