摘要
An algorithm to detect and recognize interferences embedded in a direct sequence spread spectrum (DSSS) communication system is proposed. Based on Welch's averaging modified periodogram method and fractional Fourier transformation (FRFT), the paper proposes a decision tree-based algorithm in which a set of decision criteria for identifying different types of interferences is developed. Simulation results demonstrate that the proposed algorithm provides a high recognition rate and is robust for various ISR and SNR.
An algorithm to detect and recognize interferences embedded in a direct sequence spread spectrum （DSSS） communication system is proposed. Based on Welch＇ s averaging modified periodogram method and fractional Fourier transfor- mation （FRFT）, the paper proposes a decision tree-based algorithm in which a set of decision criteria for identifying different types of interferences is developed. Simulation results demonstrate that the proposed algorithm provides a high recognition rate and is robust for various ISR and SNR.
基金
Sponsored by the Ministerial Foundation of China (41001020201 and 11002040105)
关键词
信息处理
干扰识别
谱估计
通信理论
information processing
interference recognition
spectrum estimation
FRFT
