instantaneous frequency
英 [ˌɪnstənˈteɪniəs ˈfriːkwənsi]
美 [ˌɪnstənˈteɪniəs ˈfriːkwənsi]
n. 瞬时频率
双语例句
- Modern instantaneous frequency measurement receiver and its applications for advanced radar countermeasure systems
瞬时测频接收机及其在先进对抗系统中的应用 - A method for identifying the instantaneous frequency of a linear time-varying structure was proposed.
提出了一种识别线性时变结构瞬时频率的方法。 - LFM Signal Reception in Channelized Instantaneous Frequency Measurement Receiver
信道化IFM接收机中LFM信号的接收 - An algorithm based on the magnitude and phase angle of the generalized phasor to measure instantaneous frequency and swing frequency while the power swing occurred is presented.
提出了一种基于综合相量幅值和相位变化规律实时测量电力系统振荡中振荡频率及瞬时频率的算法，利用三相电流经相应变换获得综合相量。 - A Method of Instantaneous Frequency Domain Filtering Based on HHT
基于希尔伯特谱的瞬时频率滤波方法 - Supposing the LFM signals had been sorted and selecting the instantaneous frequency as identification character, the closest method is used to distinguish the signals.
在对LFM信号实现分选的基础上，选取待识信号的瞬时频率作为识别特征，利用最近邻方法对信号进行识别。 - Instantaneous frequency identification of a structure based on complex wavelet transform
最大瞬时转速变化率基于复小波变换的结构瞬时频率识别 - Instantaneous frequency extraction method and experiment based LMD
基于LMD的信号瞬时频率求取方法及实验 - Research on PCM/ FM Modulation Identification Based on Instantaneous Frequency Histogram
基于瞬时频率直方图的PCM/FM信号调制识别研究 - In the paper, a novel instantaneous frequency measure method, which is applicable for the frequency measure system of frequency hopping radar, is presented according to the digital phase-shift theory.
本文根据时钟数字移相原理，提出了一种新的瞬时测频方法，适用于捷变频雷达测频系统。 - An Improved Phase Unwrapping Algorithm and Its Application to Instantaneous Frequency Estimation
改进的相位展开算法及其在瞬时频率估计中的应用 - WDM Driver Development of Instantaneous Frequency Measurement Card Based on PCI Bus
基于PCI总线的实时测频卡WDM驱动程序设计 - Individual identification of FSK signals based on fine feature analysis of instantaneous frequency
基于瞬时频率细微特征分析的FSK信号个体识别 - Instantaneous Frequency Estimation Based on Adaptive Time-Frequency Distribution
基于自适应时频分布的瞬时频率估计算法 - Improved method of instantaneous frequency estimation based on wavelet ridge
基于改进小波脊提取算法的数字信号瞬时频率估计方法 - Research on capturing a particular point of blood pressure based on the multi-signal instantaneous frequency
基于多信号瞬时频率捕捉血压信号特定点的研究 - Instantaneous Frequency Based Power System Oscillation Modeling Method for Relay Protection
基于瞬时频率的保护用振荡建模新方法 - Signal Detection and its Instantaneous Frequency Estimation Based on Hybrid Time-frequency Representations
基于混合时-频分布的信号检测与瞬时频率估计 - The instantaneous frequency analysis of GPR data using empirical mode decomposition
基于EMD分解的探地雷达信号瞬时频率分析 - Design of Software for the DSP of Instantaneous Frequency Measurement System with Hilbert-Huang Transform
基于希尔伯特&黄瞬时测频的DSP软件设计 - Instantaneous frequency rate estimation of multicomponent two-dimensional chirp signals
多分量二维线性调频信号瞬时频率变化率估计 - The algorithm can be realized in computer completely, it measures the instantaneous frequency of signal, and implements code synchronization through the jumping of frequency.
这种算法完全可以在微机上软件编程实现，它通过实时估计信号的频率，根据频率的跳变来提取同步信息。 - Instantaneous frequency estimation of frequency modulation signals in low signal noise ratio
低信噪比情况下调频信号的瞬时频率估计 - The instantaneous frequency of seismic signal could be derived by Hil-bert transformation.
用希尔伯特变换的方法可以求出地震信号的瞬时频率。 - Based on superiority of HHT, the character of gravity tide and nonstationary processes of earthquake, we design characteristic parameters of instantaneous frequency of gravity tide.
结合HHT的优越性、固体潮的特点和地震的非平稳过程特性，设计重力固体潮地震前兆分析的瞬时频率特征参数； - Time-Frequency Analysis Based on Bi-directional Gaussian Kernel and Its Application in Instantaneous Frequency Estimation
双向高斯核函数时频分布及在瞬时频率估计中的应用 - As a result, the instantaneous frequency is different at different position.
结果表明，堆积脉冲不同位置瞬时频率变化不同； - Compared with the original method, the improved one has better effect on the calculation of instantaneous amplitude, instantaneous phase and instantaneous frequency in the synthetic seismogram.
将改进后的算法应用于合成地震记录计算瞬时振幅、瞬时相位和瞬时频率，获得了较好的效果。 - The instantaneous frequency estimation problems of single-component LFM signal are studied.
研究了单分量LFM信号的瞬时频率估计问题。 - Thus fault transient signal can be analyzed by Instantaneous frequency and Hilbert marginal spectrum.
通过瞬时频率和进一步得到的Hilbert边际谱，对故障暂态信号进行了分析。