DocumentCode :
3698976
Title :
Acquisition method of Loran-C signal based on matched filter
Author :
Yuanyuan Gao;Yu Hua;Shifeng Li;Chaozhong Yang
Author_Institution :
National Time Service Center, Chinese Academy of Sciences, Xi´an, Shannxi, China
fYear :
2015
Firstpage :
1
Lastpage :
5
Abstract :
A novel acquisition method of the Long-range navigation (Loran)-C signal based on matched filter is proposed to improve the acquisition performance of Loran-C signal under heavy noise environment. Higher signal to noise ratio (SNR) could be obtained through matched filtering the received signals. Then outputs are correlated with standard pulse signal and the correlation peaks are judged. Theoretical analysis and simulation experiments show that the proposed method can eliminate the noise effectively, the anti-noise performance is superior to -20 decibel (dB), improving about 10dB compared with the traditional methods, and higher acquisition processing gain is obtained, while its implementation is simple. It has important significance for designing digital Loran-C receiver.
Keywords :
"Matched filters","Signal to noise ratio","Correlation","Finite impulse response filters","Standards","Delays"
Publisher :
ieee
Conference_Titel :
Signal Processing, Communications and Computing (ICSPCC), 2015 IEEE International Conference on
Print_ISBN :
978-1-4799-8918-8
Type :
conf
DOI :
10.1109/ICSPCC.2015.7338868
Filename :
7338868
Link To Document :
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