信息工程大学学报2024，Vol.25Issue(4)：391-396,6.DOI:10.3969/j.issn.1671-0673.2024.04.003
空时处理引起的GNSS信号失真分析与补偿方法
Analysis and Compensation Method of GNSS Signal Distortion Caused by Airtime Processing
摘要
Abstract
The space time adaptive processors(STAP)technology will distort the relevant peaks of global navigation satellite system(GNSS)signals and reduce the capture and tracking performance,which lead to the degradation of the positioning accuracy of the receiver in the complex interference environment.Firstly,the distortion of the correlation peak of STAP under the minimum variance dis-tortion-free response criterion is analyzed using theory and simulation method,and the results show that the number of taps and spatial correlation coefficient directly affect the distortion of the correla-tion peak.Secondly,an adaptive tapping algorithm based on antenna array signal to interference plus noise ratio(SINR)and an array sparse configuration algorithm are proposed to optimize the number of taps and reduce the spatial correlation coefficient,respectively.Finally,the effectiveness of the two algorithms is verified through simulation,and the optimized number of taps and array sparse con-figuration can reduce the distortion of correlation peaks caused by STAP.关键词
全球卫星导航系统/空时自适应处理/相关峰/阵列稀疏算法/自适应抽头算法Key words
global navigation satellite system/space-time adaptive processing/correlation peak/array sparse algorithm/adaptive tapping algorithm分类
信息技术与安全科学引用本文复制引用
常嵩雨,贾学东,陈国军..空时处理引起的GNSS信号失真分析与补偿方法[J].信息工程大学学报,2024,25(4):391-396,6.
