2) maximum frequency
最大频率
1.
Feature analysis of the maximum frequency waveform from blood flow Doppler signals and its application;
多普勒血流信号最大频率曲线的特征分析及应用
2.
A new method, singularity detection and processing with wavelets, is used to estimate the maximum frequency of Doppler signal.
提出了利用小波奇异点检测提取多普勒信号最大频率的方法 ,并通过对模拟多普勒信号、实际多普勒信号最大频率的估计比较 ,表明小波变换法在最大频率估计中有较高的精度 。
3.
First the envelope of sonogram is recognized by digital estimation of maximum frequency.
通过估计Doppler信号的最大频率以提取声谱图的包络,然后自动计算声谱参数,从而使自动分析结果的准确性和可重复性明显优于人工分析方法。
3) maximum spectrum peak algorithm
最大频谱
4) single frequency amplifier
单频放大
5) maximizing fundamental frequency
最大基频
6) large frequency offset
大频偏
1.
Research of PN code acquisition under large frequency offset and low signal to noise ratio in DS spread spectrum;
大频偏低信噪比下直扩系统中的PN码捕获研究
2.
In this paper,the timing and frequency synchronization under large frequency offset can be realized by modifying the generation of the training sequence.
通过对已有训练序列产生方法的修改,使它能实现大频偏环境下定时和频率同步。
3.
For code acquisition of DSSS in condition of large frequency offset,common technology is to insert the pilot channel signal into the DS/SS signal.
关于大频偏下直接序列扩频系统的码捕获,一般的处理方法是在直扩信号中引入导频信号,接收端通过对导频信号的处理进行频偏估计,并消除频偏对PN码相关值的影响(典型的有“全球星”卫星移动通信系统)。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条