Title :
A frequency offset estimation method overcoming aircraft fading
Author :
Quan, Liang ; Shen, Binsong ; Zhou, Shenglan ; Qin, Jiancun
Author_Institution :
54th Res. Inst., CETC, Shijiazhuang, China
Abstract :
The channel of troposcatter communications is characterized by multi-path and time-variant. Big Doppler Shift arises from aircraft navigating scatters. In order to estimate frequency offset quickly, a low complexity frequency offset estimation method is given in summary on the basis of the previous study. Comparing with previous methods, this method substitutes addition and subtraction for complex multiplication, and reduces complexity. Computer simulation results show that this method can overcome aircraft fading, and estimate the frequency offset with high accuracy.
Keywords :
Doppler shift; fading channels; frequency estimation; multipath channels; tropospheric electromagnetic wave propagation; Doppler shift; aircraft fading; aircraft navigating scatters; complex multiplication; frequency offset estimation method; troposcatter communications; Aircraft; Aircraft navigation; Channel estimation; Estimation; Fading; Frequency estimation; Phase shift keying; aircraft fading; carrier recovery; frequency offset estimation; troposcatter communication;
Conference_Titel :
Computer Science and Service System (CSSS), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9762-1
DOI :
10.1109/CSSS.2011.5974901
