几何轮廓参数包括尺寸参数、位置参数、形状参数以及表征频域特征的谱参数等。
The geometrical parameters of a contour include its dimension, position, form error and form spectrum.
自动控制系统的动态性能的分析方法包括时域分析法，频域分析法，及稳定性判据。
Methods of analyzing the dynamic performance of automatic control system can include time domain analysis, frequency domain analysis and stability.
这些方法包括：统计信号处理，频域信号处理和时频域信号处理方法。
These methods are classified into three categories:statistical signal processing, frequency domain analysis and time-frequency analysis.
本文应用势流理论和频域方法研究了三维浮体在深水域波浪中航行时的非线性绕射问题，该问题包括非线性兴波问题和非线性绕射问题。
In this paper, the nonlinear diffraction problem is studied with potential flow theory in frequency domain for three-dimensional floating body sailing in waves on deep water.
这里，主要对二次处理的方法作了详细的介绍，包括时域信号的统计特征，频域分析的傅立叶变换和短时傅立叶变换。
Here, secondary treatment methods are introduced in detail, include time domain signal statistics character, frequency analysis fast Fourier transform (FFT), and short time Fourier transform (STFT).
系统能够对语音文件进行控制，包括语音文件录制、语音文件播放、语音文件暂停等，并且系统能够显示输入语音文件的时域和频域分析结果谱图。
The system can control the playing, recording and pausing, and can display figure forms of the input speech both in time domain and frequency domain.
频域分析包括频谱分析、全息谱分析、频谱细化分析。
The frequency filed analyzing contains the frequency spectrum analyzing, complete information analyzing, frequency room analyzing.
本文的主要研究工作包括基于频域分析的分段截取平均能量法阻尼识别方法的研究，并进行了试验验证和比对分析；
The main research work includes analysis based on frequency domain sub-average energy interception method of damping identification method, and were tested and compared to the analysis;
第二阶段主要涉及改善图像质量的一些图像处理技术，包括基本的图像变换、频域增强、彩色处理和图像恢复技术等。
In the second phase, techniques to improve the image quality are analyzed, and they are image transformation, frequency enhancement, color image, image recovery, and so on.
神经网络方法可用于动力学系统的参数估计，包括时域和频域建模。将单层神经网络用于单交量线性连续时不变系统的参数估计中，线性系统分别用状态方程及传递函数来描述。
A simple neural network structure and its learning algorithm are presented for the purpose of system identification of a linear time invariant system which is represented by the state space equation.
本文的主要内容包括以下几个方面：（1）推导了毫米波LFMCW雷达目标回波信号在时域和频域上的表达式；
The research would be summarized as follows:(1) MMWLFMCW radar target echo signal expressions are derived in the time and frequency domain respectively.
本文的主要内容包括以下几个方面：（1）推导了毫米波LFMCW雷达目标回波信号在时域和频域上的表达式；
The research would be summarized as follows:(1) MMWLFMCW radar target echo signal expressions are derived in the time and frequency domain respectively.
应用推荐