提出了用激光衍射功率谱方法测量柱形颗粒群直径分布的技术方法。
A new approach to measure the long cylindrical particle by using the laser diffraction power spectrum method is presented in this paper in detail.
数值模拟试验显示，这种方法在抑制高斯有色噪声方面优于传统功率谱方法。
Synthetic test shows that the method presented here is superior in suppressing Gaussian colored noise.
本文用自回归功率谱方法分析了极移、地球自转和大气激发函数的资料，得到了它们的低频谱。
The data of polar motion, rotation of the earth and atmospheric excitation function are analysed by the Auto-Regression power spectrum method, and their spectra at low frequency band are obtained.
利用互功率谱方法对异步电动机发生多根导条断裂故障进行了模拟仿真，包括连续断条和间歇断条故障。
In this paper, the method of cross power spectrum is used to simulate rotor bars breaking faults of induction motor, including continuous breaking and intermittent breaking of rotor bars.
在变切削参数的加工工况下，通过对振动信号的采集和频域处理，发现采用单一的自功率谱方法难以有效检测出刀片破损。
Through collecting vibration signal and analyzing it in the frequency domain in the condition of changing parameter cutting, a single self power spectrum is hard to detect tool breakage effectively.
文中主要描述了信号功率谱的计算和实现方法。
The methods of computation and realization of signal power spectral density are mainly discussed.
本文采用自功率谱、逆频谱方法对拖拉机变速箱异常噪声源进行了诊断，找出了产生异常噪声的根源。
With auto-power spectrum and cepstrum, this paper diagnoses the unusual noise source of the gear box, and finds an impaired gear of the box.
在计算方法上，创造性地利用功率谱来计算血流参数。
And the blood flow parameters are calculated with the power spectrogram method.
分析了LED芯片非接触检测系统噪声信号的功率谱，研究了噪声信号的抑制方法。
The noise power spectra of the non-contact detection system for LED chips and the noise suppression methods are discussed.
采用随机数值模拟方法和功率谱密度函数生成随机轨道粗糙度。
The random rail roughness samples are yielded using random numerical method and power spectral density function.
大地电磁资料处理方法大多数都是对一段记录做傅氏变换，构成功率谱后再求张量阻抗元素。
Most magnetotelluric data processing methods make the Fourier transform of a segment record to get a power spectrum then to solve for tensor impedance element.
方法利用慢性埋藏电极记录清醒家兔海马和脑皮层eeg及功率谱。
Methods EEG and EEG power spectrum were recorded in conscious rabbits with chronical implanted electrodes.
针对无线信道角度功率谱测量问题，提出了一种简单而新颖的测量方法。
A novel method for estimating power azimuth spectrum(PAS)of wireless channel is presented in this paper.
给定具体的数字调角形式，用这种方法可在计算机上计算所给信号的平均功率谱密度。
Giving concrete digital-modulated form, the mean power spectrum density of the signals discussed can be obtained in this way. The calculation can be done on computers.
同时，采用模拟与实测两种不平顺样本的计算结果表明，本文采用功率谱密度函数的模拟方法可以基本反映轨道的实际不平顺情况。
The calculation results using simulated and measured irregularity indicate that the power spectral density function and the simulated method used here can reflect true condition of rail.
提出了一种用小功率宽带光源较精确测量光纤放大器小信号增益谱的方法。
In this paper, a method evaluating small signal gain spectrum of optical fiber amplifier only using a small power broadband light source was proposed.
本文提出用最小p乘优化方法从响应功率谱估算结构的动力参数。
A least Pth optimization method is developed for estimation of structural dynamic parameters from estimated response spectrum power density function.
本文提出了在时域中快速诊断信号功率谱特征变化的方法。
A method for time domain fast diagnosis of a signal of the characteristic changes, of the power spectrum is proposed.
针对模拟集成电路参数型故障的测试难题，提出了定位模拟集成电路参数型故障的功率谱相关分析方法。
Aiming at the problem of testing parametric fault in analog integrated circuits, an approach based on power spectrum correlation analysis for diagnosing parametric faults is presented.
结果表明，利用等工件转角间隔采样通过互功率谱密度方法可以实现相位差的精确在线测试。
The results show that the phase shift angle can be measured accurately based on the cross-spectrum method with equivalent interval sampling of workpiece rotary angles.
采用机械阻抗原理，给出了轮轨系统随机激振力功率谱密度函数的理论计算方法。
A theoretical method of the PSD of random excitation force in Wheec-rail system is advanced on the principle of mechanical impedance.
针对此问题，笔者提出了一种基于快速傅立叶变换和功率谱密度计算的解决方法。
Aiming at this problem, an effective method based on FFT and power spectral density computing has been put forward.
本方法不需要特征分解，并且得到的是通常意义上的功率谱(可用于估计信号的能量)。
In this method, eigen-decomposition does not have to be used, and the direction spectrum is the power spectrum in common sense (it can be used to estimate signal power).
伯格（1967）提出的最大熵谱分析方法是一种改进的功率谱估算方法，它可以有效地提高功率谱的分辨率。
P. Burg in 1967 is an improved method for estimating power spectrum, which can effectively improve the resolution of a power spectrum.
给出了一种能够模拟具有指定功率谱特征的舰船辐射噪声的方法。
A method of simulating vessel's radiated noise with specified power spectrum is presented.
最后给出基于建立信号模型和互功率谱相位的时延估计方法。该方法对噪声和混响均具有很强的鲁棒性。
A time delay estimation method based on onset signal and CSP is proposed, it's robust to noise and reverberation.
该文针对风速随机变化的特性，在风速统计特性研究的基础上，用自回归滑动平均(ARMA)方法建立了具有一定功率谱密度特性的风速模型。
This paper deals with stochastic characteristic of the wind speed, and gives an auto-regressive moving-average (ARMA) model for wind speed subjected to particular power spectral density.
为了得到更好的相关结果，本文提出对联合功率谱进行非线性处理的方法。
In this paper, in order to achieve better correlation result, the nonlinear processing of joint transform power spectrum (JTPS) is put forward.
为了得到更好的相关结果，本文提出对联合功率谱进行非线性处理的方法。
In this paper, in order to achieve better correlation result, the nonlinear processing of joint transform power spectrum (JTPS) is put forward.
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