太赫兹科学与电子信息学报Issue(6)：807-812,6.DOI:10.11805/TKYDA201406.0807
中频载波对伪码测距精确度的影响分析
Analysis of the influence of IF carrier frequency in PN code ranging precision
常青 1李育龙 1李东新1
作者信息
- 1. 北京航空航天大学 电子信息工程学院，北京 100191
- 折叠
摘要
Abstract
The impact of digital receiver carrier frequency on the ranging precision is analyzed. It is pointed out that when the IF carrier frequency is an integer multiple of PN code rate, the ranging value will have a larger jitter. Based on the analysis of the relationship among the IF carrier frequency, PN code rate and sampling rate, the formula of designing high precision pseudo code ranging system from the three parts is put forward, which can be used to determine whether a certain value is suitable for the frequency of the IF carrier. The formula shows important guiding significance for the design of pseudo code ranging system.关键词
中频载波/伪码速率/采样率/测距精确度Key words
IF carrier/PN code rate/sampling rate/ranging precision分类
信息技术与安全科学引用本文复制引用
常青,李育龙,李东新..中频载波对伪码测距精确度的影响分析[J].太赫兹科学与电子信息学报,2014,(6):807-812,6.
