西安电子科技大学学报（自然科学版）2018，Vol.45Issue(2)：7-12,6.DOI:10.3969/j.issn.1001-2400.2018.02.002
改进的TMBOC调制信号闸波相关鉴相方法
Improved strobe correlation discrimination method for time-multiplex binary offset carrier modulated signal
摘要
Abstract
In order to solve the problem of ambiguous tracking and multipath mitigation of new signal time-multiplexed binary offset carrier modulated signal in the global navigation satellite system,this paper proposes an improved strobe correlation method which calculates the correlation of the received TMBOC signal with the W2 strobe waveform in 0.5 code offset and the pseudo-random code code in 0.5 code offset, respectively, and then the two correlations are multiplied. In this way an unambiguous and good symmetrical code discrimination curve is obtained.The characteristics of the obtained code discrimination curve by the proposed method is analyzed and simulated,and the result shows:the proposed method is easy to realize, and the obtained code discrimination curve has good central symmetry, strong multipath mitigation capability and can be used for an unambiguous tracking,so it is more suitable for the TMBOC signal discrimination compared with the existing strobe correlation methods and improved methods.关键词
卫星导航系统/时分二进制偏移载波调制/闸波相关/抗多径/无模糊跟踪Key words
global navigation satellite system/time-multiplexed binary offset carrier modulated signal/strobe correlation/multipath mitigation/unambiguous tracking分类
信息技术与安全科学引用本文复制引用
李文刚,王屹伟,黄辰..改进的TMBOC调制信号闸波相关鉴相方法[J].西安电子科技大学学报（自然科学版）,2018,45(2):7-12,6.基金项目
国家自然科学基金资助项目(61201136) （61201136）
高等学校学科创新引智计划资助项目(B08038) （B08038）
