摘要
基于一般干扰检测算法,结合北斗B1信号的特征,提出了改进的分段干扰检测方法。将待检测信号进行分段,设置多个干扰检测门限,得出干扰频点的位置。利用干扰数据和实测北斗B1信号数据对分段干扰检测方法进行验证,结果表明:分段干扰检测方法可以有效检测出北斗B1信号中的干扰,且检测时间较短,结果较为准确。
Based on the general interference detection algorithm and the characteristics of Beidou B1 signal,an improved segmented interference detection method is proposed.The signal to be detected is segmented,and multiple interference detection thresholds are set to obtain the position of the interference frequency point.Using the interference data and the measured Beidou B1 signal data to verify the segmented interference detection method,the results show that the segmented interference detection method can effectively detect the interference in the Beidou B1 signal,and the detection time is shorter,and the result is more accurate.
作者
刘瑞华
梁欣萌
王晶
Liu Ruihua;Liang Xinmeng;Wang Jing(School of Electronic and Information Engineering,CAUC,Tianjin 300300,China;Key Laboratory of Civil Aircraft Airworthiness Technology,CAAC,Tianjin 300300,China)
出处
《航天控制》
CSCD
北大核心
2020年第2期25-30,37,共7页
Aerospace Control
基金
国家重点研发计划“广域航空安全监控技术及应用”项目“北斗机载设备检测与适航评估技术”子课题(2016YFB0502402)。
关键词
北斗B1信号
干扰频点
分段检测
单门限
双门限
Beidou B1 signal
Interference frequency point
Detection segment
Single threshold
Double threshold
