Loran-C Signal Fast Acquisition Method and Its Performance Analysis
Li Shi-feng①②③ Wang Yu-lin① Hua Yu①③ Yuan Jiang-bin①②
①(National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China) ②(University of Chinese Academy of Sciences, Beijing 100039, China) ③(Key Laboratory of Precision Navigation and Timing Technology, Chinese Academy of Sciences, Xi’an 710600,China)
Abstract：The combination of Loran-C and Global Navigation Satellite System (GNSS) has become a?new?application?mode, which provides reliable positioning, navigation and timing service for users. Based on the research on Loran-C signal system, considering its long signal acquisition time and poor anti-noise performance of Loran-C receiver, this paper proposes a new method of anti-noise and fast acquisition for Loran-C signal, which is based on delay correlation; and verifies the practicality of this method by theoretical analysis and carrying out simulation test. This method solves successfully the problem of fast acquisition of Loran-C signal in heavy noise environment. The result shows that the acquisition time of this method is less than 200 ms, the anti-noise property is less than -10 dB.
李实锋, 王玉林, 华宇, 袁江斌. 罗兰-C信号快速捕获方法及其性能分析[J]. 电子与信息学报, 2013, 35(9): 2175-2179.
Li Shi-Feng, Wang Yu-Lin, Hua Yu, Yuan Jiang-Bin. Loran-C Signal Fast Acquisition Method and Its Performance Analysis. , 2013, 35(9): 2175-2179.
2013, Vol. 35 
