DocumentCode
1644032
Title
The Algorithm for Deep-Space Weak Signal Tracking Using a Modified Kalman Filter
Author
Wang, Aihua ; Dong, Wenchao ; Shen, Yebing
Author_Institution
Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing, China
fYear
2011
Firstpage
1
Lastpage
4
Abstract
In Deep-space TT&C and communication, the received signal is very weak, so the traditional Kalman Filter is hard to track the signal accurately. In this paper, a modified Kaman Filter using least squares (LS) method is presented to address this issue. This method is good at tracking amplitude, phase, frequency and its time derivatives of frequency (the signal with low carrier acquisition threshold and high dynamic). Computer simulation shows that the lower carrier power -157dBm can be achieved with this method.
Keywords
Kalman filters; least squares approximations; target tracking; amplitude tracking; deep-space TT&C; deep-space weak signal tracking; frequency tracking; least squares method; low carrier acquisition threshold; modified Kalman filter; phase tracking; Equations; Estimation; Frequency estimation; Kalman filters; Mathematical model; Time frequency analysis; Time measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location
Wuhan
ISSN
2161-9646
Print_ISBN
978-1-4244-6250-6
Type
conf
DOI
10.1109/wicom.2011.6040123
Filename
6040123
Link To Document