摘要
传统的单谱脉冲响应信号畸变检测方法无法对DoS网络攻击信号实现有效检测,提出一种采用幅度和频率对应关系双线性变换的信号检测算法准确检测DoS网络攻击信号。利用格型陷波器线性预测特性,使DoS信号发出有效攻击前产生频谱混迭状态下的预畸变效应,及早发现攻击信号,达到有效准确检测的目的。仿真结果表明,采用该检测算法检测DoS网络攻击信号,检测性能很好,检测概率大幅提高,虚警概率为0,能有效应用到网络安全和信息对抗等领域。
The traditional single spectrum signal of the impulse response aberration detection method is unable to detect net-work attack of DoS signal, the signal detection algorithm using amplitude and frequency relation of bilinear transformation detection network attack of DoS signal is proposed. The linear prediction property is used and the spectrum aliasing pre-distortion effect of DoS attacking signal is occurred. The accurate detection is realized. Simulation result shows that using the detection algorithm to detect the DoS signal, the detection performance is good, and the detection probability is im-proved greatly, the probability of false alarm is 0, it can be effectively applied to network security and information confronta-tion field.
出处
《科技通报》
北大核心
2014年第8期38-40,共3页
Bulletin of Science and Technology
关键词
频谱混迭
DOS攻击
信号检测
格型陷波器
spectrum aliasing DoS attack signal detection lattice notch filter
