基于DFT和自相关理论，该文提出了一种双正弦信号频率的快速估计方法。
A method, which realizes the fast frequency measurement for dual sinusoidal signals basing on DFT and autocorrelation theory, is given.
为了克服传统的“自我—非我”模型的不足，设计了一种新的基于危险理论的双信号协同入侵检测模型。
In order to overcome the limitations lied at the classic self-non-self thinking, this paper proposes a novel Intrusion Detection System(IDS) based on double-signal inspired by danger theory.
以双谱分析理论为基础，分析并计算了不同振动信号的选择双谱。
The theory of bispectra analysis is reviewed and vibration signal selected bispectra for vehicle shock absorber are plotted.
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