This paper introduces the concept of bispectrum and its some properties.
介绍了双谱的概念和有关性质。
As one high order spectrum estimation, bispectrum estimation is widely used.
双谱估计是一种应用广泛的高阶谱估计。
Bispectrum and correlation spectrum are excellent for some mechanical fault forms.
三阶谱与相关谱对某些故障的分析很有效。
The method for radar target recognition using local integral bispectrum and SVM is proposed.
提出了基于局部积分双谱与SVM的雷达目标识别方法。
Based on bispectrum analysis, a new characterizing method of surface roughness is presented.
提出了基于双谱分析的表面粗糙度特征分析方法。
Therefore, bispectrum is used to extract the non gaussian ingredients from the noise signals of ships.
由此可利用信号双谱，提取舰船辐射噪声信号的非高斯成份。
This paper presents a modified estimation algorithm for transient signal reconstruction based on bispectrum.
本文利用高阶矩的性质，提出一种改进的基于双谱估计的瞬态信号重构算法。
With bispectrum analysis, an ar model parametric bispectrum estimation is presented for radar target echoes.
本文利用双谱分析方法，提出用非高斯ar模型对雷达目标回波信号进行参数化双谱估计。
The simulation experiment shows that the bispectrum method has the advantage of high testing sensitivity an…
最后给出的计算机模拟测试结果表明，双谱法比功率法具有更高的检测分辨率和抗噪声能力。
But bispectrum includes some redundancy information, which is invalid for recognizing emitters with computers.
但是信号双谱中包含了很多冗余信息，不利于机器进行识别处理。
It is proposed that bispectrum and bicoherence is an effective and necessary tool in nonlinear fluid mechanics .
双谱、相干分析是流体力学研究中一个有效的、可或缺的技术手段。
Experimental results showed that bispectrum and bicepstrum were feasible and effective for gear fault diagnosis.
结果表明，双谱和倒双谱分析方法对识别齿轮故障是可行的、有效的。
Ar bispectrum are put forward for investigating the dynamic characteristics of the magnetorheological vibrant device.
这里用AR双谱研究磁流变振动装置的动态特性。
Moreover, through analyzing the information of bispectrum phase, the fault cylinder position can be pointed out in misfire fault.
进一步分析双谱相位信息，可以确定单缸断油时的故障缸位置。
The method of bispectrum can extract characteristic of seismic series bispectrum and detect fracture zones by decreasing dimensions.
双谱法通过采用模式识别的方法对地震序列的双谱提取特征，通过降维实现裂缝发育带的检测。
The simulation experiment shows that the bispectrum method has the advantage of high testing sensitivity and insensitivity to noise.
最后给出的计算机模拟测试结果表明，双谱法比功率法具有更高的检测分辨率和抗噪声能力。
Meanwhile, we study the infrared and laser bispectrum model of oceanic surface and build the backscattering model of the oceanic surface.
研究了海面的红外与激光双谱散射模型，建立了海面的后向散射模型。
The results show the bispectrum of EEG are very different at different times, so bispectrum can be used for the detection of driving fatigue.
分析结果显示，驾驶不同时刻的脑电双谱结构有很大差异，表明双谱分析方法有望成为驾驶疲劳检测的一个指标。
In this paper, instead of using the bispectrum to detect the quadratic phase coupling, a new method based on -dimension spectrum is developed.
本文在原有利用双谱对二次相位耦合进行分析的基础上，提出了维谱分析方法。
In order to process the non-stationary vibration signals such as speed up or speed down signals effectively, the order bispectrum technique was presented.
针对齿轮箱升降速过程中振动信号非平稳的特点，将常规的阶次分析与双谱分析技术相结合，提出了基于阶次双谱的齿轮箱故障诊断方法。
Classifying five target signals underwater base on the bispectrum features through BP neural networks, the targets are identified properly with high efficiently.
在提取了水下目标信号的双谱特征的基础上，利用BP神经网络对五类水下目标信号的双谱特征进行分类，得到了较高的识别率。
This paper mainly deals with the bispectrum of complex-valued signals analysis techniques as well as their applications to conventional radar target signature analysis.
本文主要研究了复信号双谱分析方法及其在常规低分辨雷达目标特征分析中的应用。
The method of detection on transient signal by the slice of cyclo bispectrum in stationary random noise is proposed in this paper, simulation results are presented also.
提出一种在平稳随机噪声中检测暂态信号的循环双谱切片方法，同时给出仿真结果。
Then the influence on the average power spectrum and bispectrum of specklegrams caused by the photon noise, additive noise and more complex noises of other kinds in the detecting system .
介绍了所用的二维光子计数斑点像探测系统的性能，分析了探测系统的光子噪声、附加噪声和其它更复杂的噪声对斑点图的平均功率谱和重谱的影响。
The research result shows that the method of the diagonal slice of the normalized bispectrum magnitude and K-L transform is an effective method for extracting features from Chinese pulse signals.
研究结果表明，归一化双谱对角切片与K - L变换相结合的方法是提取中医脉象信号特征的有效方法。
The research result shows that the method of the diagonal slice of the normalized bispectrum magnitude and K-L transform is an effective method for extracting features from Chinese pulse signals.
研究结果表明，归一化双谱对角切片与K - L变换相结合的方法是提取中医脉象信号特征的有效方法。
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