1) fundamental frequency estimate
基波频率估计
2) sine-wave frequency estimation
正弦波频率估计
1.
A method based on sine-wave frequency estimation for in-pulse fine feature analysis is introduced.
介绍了基于正弦波频率估计的脉内特征参数估计方法,并与数字正交法相结合,解决了编码信号频率估计模糊问题。
3) carrier frequency estimation
载波频率估计
1.
To estimate carrier frequency of digitally modulated signal whose modulation type is unknown, a carrier frequency estimation method for digitally modulated signal is proposed.
针对未知调制类型情况下数字调制信号的载波频率估计问题,提出了一种适用于数字调制信号的载波频率估计方法。
4) harmonic frequency estimation
谐波频率估计
1.
This paper summarizes and analysis the method of harmonic frequency estimation,pointed out the harmonic frequency estimation study of the status quo at home and abroad.
谐波频率估计为信息科学在信号处理领域的一个重要组成部分。
5) estimation of gene frequency
基因频率估计
6) frequency estimation
频率估计
1.
Frequency-shift-domain iterative analysis for frequency estimation of equilong signals;
信号等长情况下频率估计的降频域迭代分析法
2.
Chirp Z transform-based high performance frequency estimation;
基于线性调频Z变换的高性能频率估计
3.
Approach of frequency estimation based on information fusion among multi-section signals with same length and known frequency-ratio;
基于多段分频等长信号融合的频率估计方法
补充资料:频率(见正弦电流)
频率(见正弦电流)
frequency
P{n}日频率(frequency)周期性变化的物理量每秒所经历的周期数。一般以了表示,f一宁,T为周期,频率的单位为赫兹(Hz)。在通常的稳态情况下,电力系统的频率基本保持恒定,允许偏差不超过士(0 .5%一1环),可视为常数(如中国f一50Hz,有的国家采用6OH幻,且全系统频率相同。频率是衡量电能质量的重要指标之一。 正弦量相角随时间的变化率称为角频率。正弦电流的数学表达式为 i=Imsin夕一Imsin(叫+妇式中夕一(哪+卯是正弦量的相角,它反映了正弦变量的变化进程。相角随时间的变化率称为正弦变量的角频率,即d(研+叻 dt。的单位是弧度每秒(rad/S),频率与角频率的关系为f一类。 乙兀
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参考词条