时频分析方法分为线性、二次型和自适应等多种方法，它们提供了在时频二维平面上，分析信号时变功率谱的有效手段。
The methods of time frequency analysis include linear, quadratic and adaptive methods. They provide effective tools for analyzing signal time varying spectrum in time frequency plane.
方法14名受试者分别参加肱二头肌和腰部脊竖肌等长运动负荷实验，取表面肌电信号进行FF T功率谱及其功率谱二维地形图分析。
Methods Static isometric loading of the biceps and low back muscle was performed in 14 subjects, using FFT power spectrum and its two dimensional mapping to analyze SEMG signals from these muscles.
本文在分析SAR相干干扰原理、用于SAR相干干扰信号产生的二维卷积算法的基础上，提出了一种快速算法。
This thesis has analyzed SAR coherent jamming theory, 2-d convolution algorithm for SAR coherent jamming signal generation, and provided a fast algorithm.
利用二维快速傅立叶变换的时频分析方法，对有限元计算得到的时域信号进行了分离，得到了各个模式超声波的相速度色散曲线。
The two-dimensional fast Fourier transform (2D-FFT) method has been used to analyze the ultrasonic signals where different wave modes overlaid in the time domain.
通过对二维虚拟ESPRIT信号参量估计算法的分析，提出了一种快速二维虚拟ESPRIT算法。
This paper presents a new fast method based on the 2-d virtual ESPRIT signal parameters estimation algorithm.
本文是通过分析与计算机模拟，介绍一种用于向HDTV兼容过渡的系统制式的二维信号滤波设计。
This paper through analysis and computer simulation, introduces a design of 2-D digital filter used in a compatible HDTV system.
为提取舰船噪声听觉特征，应用被动长波模型对舰船噪声进行了分析，得到噪声信号的二维时空分布。
A passive long wave cochlea model is applied to extract audial feature of naval vessel radiation noise.
如何测量回波的多普勒频移，实现测流速的目的。 文中从二维信号矢量的角度分析了多普勒频移调制和解调的过程，推导出提取速度信息的信号处理方法。
Using two-dimensional signal vectors, the process of Doppler shift modulation and demodulation is analyzed, and a signal processing method for extracting flow speed information is derived.
运用多维数字信号处理理论，分析了PAL信号亮度和色度频谱的二维交错结构。
Applying the theory of multi dimensional digital signal processing, this paper analyses the 2-dimensional interleaving structure of luminance and chrominance spectrum for the PAL signal.
文中首先介绍了阵列信号模型，分析了空时二维谱估计的原理。
The model of array signal is described first, and then the principle of 2-D spatial-temporal spectrum estimation is analyzed.
文中首先介绍了阵列信号模型，分析了空时二维谱估计的原理。
The model of array signal is described first, and then the principle of 2-D spatial-temporal spectrum estimation is analyzed.
应用推荐