现代导航
現代導航
현대도항
MODERN NAVIGATION
2014年
5期
337-341
,共5页
GNSS%抗干扰%干扰误差包络曲线%ALTBOC
GNSS%抗榦擾%榦擾誤差包絡麯線%ALTBOC
GNSS%항간우%간우오차포락곡선%ALTBOC
GNSS (Global Navigation Satellite System)%Anti-Interference%Interference Error Envelope%ALTBOC (Alternate Binary Offset Carrier)
由于环境中存在诸多电磁辐射干扰,因此如何有效评估全球卫星导航系统(GNSS)信号的抗干扰性能是一个亟待解决的问题。首先,本文利用干扰误差包络曲线对交替二进制偏移载波(ALTBOC)信号进行了在单音干扰和白噪声干扰两种情况下的抗干扰仿真分析,并和其他调制信号的抗干扰性能进行对比,仿真结果可为后续的信号体制研究提供参考。
由于環境中存在諸多電磁輻射榦擾,因此如何有效評估全毬衛星導航繫統(GNSS)信號的抗榦擾性能是一箇亟待解決的問題。首先,本文利用榦擾誤差包絡麯線對交替二進製偏移載波(ALTBOC)信號進行瞭在單音榦擾和白譟聲榦擾兩種情況下的抗榦擾倣真分析,併和其他調製信號的抗榦擾性能進行對比,倣真結果可為後續的信號體製研究提供參攷。
유우배경중존재제다전자복사간우,인차여하유효평고전구위성도항계통(GNSS)신호적항간우성능시일개극대해결적문제。수선,본문이용간우오차포락곡선대교체이진제편이재파(ALTBOC)신호진행료재단음간우화백조성간우량충정황하적항간우방진분석,병화기타조제신호적항간우성능진행대비,방진결과가위후속적신호체제연구제공삼고。
It is of a problem to effectively assess the interference impact on Global Navigation Satellite System (GNSS) signals due to a large number of electromagnetic interference. By using the interference error envelop, this paper simulates and analyses the Alternate Binary Offset Carrier (ALTBOC) modulated signal under both tone and white noise interferences, and compares with other modulated signals, the conclusion of which is of reference for future signal modulation design.