Retrieving Doppler Frequency via Local Correlation Method of Segmented Modeling

The high accuracy radio Doppler frequency is critical for navigating a deep space probe and for planetary radio science experiments. In this paper, we propose a novel method based on the local correlation of segmented modeling to retrieve Doppler frequency by processing an open-loop radio link signa...

Full description

Saved in:
Bibliographic Details
Published inRemote sensing (Basel, Switzerland) Vol. 13; no. 14; p. 2846
Main Authors Chen, Lue, Ping, Jinsong, Cao, Jianfeng, Liu, Xiang, Wang, Na, Wang, Zhen, Zhu, Ping, Wang, Mei, Man, Haijun, Fan, Fei, Lu, Weitao, Sun, Jing, Han, Songtao
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.07.2021
Subjects
Accuracy
Algorithms
Bandwidths
Chinese space program
Deep space
Doppler
frequency retrieving
Ground stations
Integration
local correlation
Mars exploration
Mars Express (ESA)
Mars missions
Model accuracy
Modelling
open-loop
Orbit determination
Radio signals
Remote sensing
Science
Signal processing
Signal to noise ratio
Space exploration
Space stations
Superhigh frequencies
Online AccessGet full text

Cover

More Information
Summary:The high accuracy radio Doppler frequency is critical for navigating a deep space probe and for planetary radio science experiments. In this paper, we propose a novel method based on the local correlation of segmented modeling to retrieve Doppler frequency by processing an open-loop radio link signal from one single ground station. Simulations are implemented, which prove the validity of this method. Mars Express (MEX) and Tianwen-1 observation experiments were carried out by Chinese Deep Space Stations (CDSS). X-band Doppler frequency observables were retrieved by the proposed method to participate in orbit determination. The results show that the accuracy of velocity residuals of orbit determination in open-loop mode is from 0.043 mm/s to 0.061 mm/s in 1 s integration; the average accuracy of Doppler frequency is about 3.3 mHz in 1 s integration and about 0.73 mHz in 60 s integration. The Doppler accuracy here is better than that of the digital baseband receiver at CDSS. The algorithm is efficient and flexible when the deep space probe is in a high dynamic mode and in low signal to noise ratio (SNR). This will benefit Chinese deep space exploration missions and planetary radio science experiments.
ISSN:2072-4292
2072-4292
DOI:10.3390/rs13142846