介绍了双谱的概念和有关性质。
This paper introduces the concept of bispectrum and its some properties.
提出了基于局部积分双谱与SVM的雷达目标识别方法。
The method for radar target recognition using local integral bispectrum and SVM is proposed.
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。
Therefore, bispectrum is used to extract the non gaussian ingredients from the noise signals of ships.
由于采用了双谱技术，脑电背景噪声的影响得到有效的抑制。
The effect of the back-ground noise is effectively rejected due to the bispectral technology.
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。
Moreover, through analyzing the information of bispectrum phase, the fault cylinder position can be pointed out in misfire fault.
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。
But bispectrum includes some redundancy information, which is invalid for recognizing emitters with computers.
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。
Meanwhile, we study the infrared and laser bispectrum model of oceanic surface and build the backscattering model of the oceanic surface.
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。
Experimental results showed that bispectrum and bicepstrum were feasible and effective for gear fault diagnosis.
理论计算表明，对不同性质的地震子波，均可从理论地震记录的双谱中重构子波。
Theoretic calculation show that wavelet can be reconstruct from double spectrum of theoretical seismic data for seismic wavelet with different characters.
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。
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.
本文从信号高阶累积量的角度出发给出了一种基于地震信号双谱的高分辨率处理方法。
The paper gave a high resolution processing method based on double spectrum of seismic signal from Angle of higher order accumulated amount of signal.
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。
The simulation experiment shows that the bispectrum method has the advantage of high testing sensitivity and insensitivity to noise.
该文对双谱假彩色微光电视系统的原理进行论述，探讨了实现双谱假彩色微光电视系统的有关技术。
This thesis puts emphasis on study on principle and technology of two colour false colour low light level TV system, pursuing the related techniques of realizing.
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.
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。
The results show the bispectrum of EEG are very different at different times, so bispectrum can be used for the detection of driving fatigue.
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。
In order to process the non-stationary vibration signals such as speed up or speed down signals effectively, the order bispectrum technique was presented.
轻核反应次级粒子的能量角度双微分谱同反应机制是密切相关的，而且对核工程技术很有应用价值。
The energy-angular double-differential spectrum of secondary particle in light nuclear reactions is closely connected with reaction mechanisms, and is quite useful to nuclear technology applications.
本文利用势模型方法研究了重双夸克在不同角动量时的基态和激发态能谱。
In this paper, by using potential method we discuss the energy spectrum of diquark on ground state and excited state with different angular momenta.
基于该模型，研制了低压电力线的MSK双路扩谱通信电路系统。
The communication system model is set up with MSK and double-pathway spread spectrum for low voltage power line.
研究了两个偶极偶极力关联的等同双能级原子与三模腔场六光子共振相互作用的辐射谱。
The emission spectrum for a pair of dipole dipole coupled identical two level atoms interacting with three mode cavity fields resonantly through 6 photon process has been studied.
在分析L波段放大自发辐射(ase)谱产生原理的基础上，设计出一种新颖的双级结构掺铒光纤ase宽带光源，该光源可在两个端口分别输出高功率的C波段和L波段的ASE谱。
A novel two-stage Er-doped ase broadband light source with two output bands, i. e. C-band and L-band was designed and demonstrated based on the analysis of the principle of the L-band ase spectrum.
芳香环谱带的相对强度和频率对于镧系元素原子序数的依赖关系表明双-双效应的存在。
The dependence of relative intensity and frequency of bands of aromatic ring on the atomic number of lanthanides indicates the presence of a double-double effect.
在此基础上进行了谱分析，得到了该模型的谱密度、互谱密度和双互谱密度。
The spectrum density matrix of the proposed model was constructed and its properties are investigated.
为双钢琴而作的第3弦乐四重奏缩编谱。
为双钢琴四手联弹而作的第13交响曲缩编谱。
为双钢琴四手联弹而作的第4弦乐四重奏缩编谱。
Reduction of String Quartet no. 4, for two pianos four hands.
本文提出了络合极谱双点滴定中置换滴定法的测定方法和定量公式。
A new method of polarographic double-point titration through displacement and complexation reactions was established.
基于双水听器互谱测量法，研制的水声声强测量设备可用于测量水下声源产生的声场中任意点的声强量值或任意面上的声强量值分布。
Based on measuring the cross-spectrum density of sound pressure between two hydrophones, the facility for underwater sound intensity measurement is investigated and designed.
在第三章中，我们利用格林函数方法研究了非对称的双量子点分子的谱性质和电子输运性质。
In chapter three, we study the spectral properties and electronic transport properties of asymmetrical double-dot molecule using causal Green's function approach.
在第三章中，我们利用格林函数方法研究了非对称的双量子点分子的谱性质和电子输运性质。
In chapter three, we study the spectral properties and electronic transport properties of asymmetrical double-dot molecule using causal Green's function approach.
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