电讯技术2018，Vol.58Issue(2)：162-166,5.DOI:10.3969/j.issn.1001-893x.2018.02.008
基于相关峰数量统计的诱骗信号快速识别
Rapid Recognition of Spoofing Signal Based on Correlation Peak Statistics
梁宵 1倪永婧2
作者信息
- 1. 中国电子科技集团公司第五十四研究所,石家庄050081
- 2. 河北科技大学 信息科学与工程学院,石家庄050081
- 折叠
摘要
Abstract
A new method is proposed for identification of spoofing signal in the forward control link of un-manned aerial vehicle(UAV) in which Direct Spread Spectrum Sequence (DSSS)is applied.The method treats the same mode spoofing signal as multipath signal,and uses matched filters to process all the received signals.The iteration algorithm is used to adjust the correlation peak decision threshold and the receiver can identify the spoofing signal by counting the correlation peaks in certain duration. Simulation results are presented in the case that a spreading sequence with period 128,Quadrature Phrase Shift Keyin(QPSK) modulation and rate 1/2 channel coding is applied,and statistics of peaks is taken over 1 024 periods of chips with 3 dB Es/N0.The results indicate that this method can recognize the spoofing signal rapidly pro-vided that the time difference between legal and spoofing signal is greater than one chip duration.关键词
直接序列扩频/无人机测控/卫星通信链路/相关峰/诱骗信号/快速识别Key words
DSSS/UAV TT&C/satellite communication link/correlation peak/spoofing signal/rapid recognition分类
信息技术与安全科学引用本文复制引用
梁宵,倪永婧..基于相关峰数量统计的诱骗信号快速识别[J].电讯技术,2018,58(2):162-166,5.
