Application of Ultra Narrow Band Modulation in Enhanced Loran System

被引：3
|
作者：
Lyu, Boyun [1 ,2 ,3 ]
Hua, Yu [1 ,3 ]
Yuan, Jiangbin [1 ,3 ]
Li, Shifeng [1 ,3 ]
机构：
[1] Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Key Lab Precise Positioning & Timing Technol, Xian 710600, Peoples R China
来源：
SENSORS | 2021年 / 21卷 / 13期
关键词：
data rate; enhanced Loran (eLoran) system; extended binary phase shift keying (EBPSK) modulation; ultra narrow band (UNB) modulation;
D O I：
10.3390/s21134347
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The Enhanced Loran (eLoran) system is valued for its important role in the positioning, navigation, and timing fields; however, with its current modulation methods, low data rate restricts its development. Ultra narrow band (UNB) modulation is a modulation method with extremely high spectrum utilization. If UNB modulation can be applied to the eLoran system, it will be very helpful. The extended binary phase shift keying modulation in UNB modulation is selected for a detailed study, parameters and application model are designed according to its unique characteristics of signal time and frequency domains, and it is verified through simulation that the application of this modulation not only meets the design constraints of the eLoran system but also does not affect the reception of the respective signals of both parties. Several feasible schemes are compared, analyzed, and selected. Studies have revealed that application of UNB modulation in the eLoran system is feasible, and it will increase the data rate of the system by dozens of times.
引用
收藏
页数：12
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