1) time-division dual frequency
分时双频
1.
Detection of targets on the sea surface using HF ground wave radar based on time-division dual frequency;
基于分时双频的高频地波雷达海面目标探测
2) bilinear time-frequency distributions
双线性时频分布
1.
An analysis on cross-terms interference of bilinear time-frequency distributions for multi-component chirp signals, which often appear in some engineering applications and many natural phenomena, is given in this paper.
以广泛出现在许多工程应用领域和物理现象中的多Chirp成分信号为对象,研究了双线性时频分布对这种信号时频分布的交叉项特点,推导了几种分布的交叉项的数学表示,从模糊平面分析了交叉项抑制的机理,提出了双线性时频分布对多Chirp成分信号时频表示存在局限,仿真试验结果显示理论分析正确。
3) bispectrum time-frequency analysis
双谱时频分析
1.
By bispectrum time-frequency analysis (BTFA) to GPR signals, the variation of Gaussian properties generated from the geologic cavities to identify it was obtained.
介绍了基于高阶统计量(HOS)的一种识别地质孔洞的新方法,该方法通过对探地雷达信号进行双谱时频分析(BTFA),提取由孔洞引起的信号高斯性变化来识别地下溶洞。
4) time-sharing two frequency laser
分时双频激光器
5) bilinear time-frequency distribution
双线性时间-频率分布
1.
To detect transient signals under complex background,a novel method of aliasing-free exponential bilinear time-frequency distribution is presented in this paper,which can avoid the frequency aliasing and information loss existing in the traditional bilinear distributions,reduce the crossterms effectively and possess high time-frequency resolution.
针对复杂背景条件下瞬时信号的探测,提出一种新的无混叠双线性时间-频率分布方法,该方法能够避免常用的双线性时频分布中的频率混叠与信息丢失,有效减小交叉项干扰,而且具有较高的时频分辨率。
6) Cohen bilinear time-frequency distribution
Cohen类双线性时频分布
1.
In the nonstationary signal processing technology Cohen bilinear time-frequency distribution technology has the good time frequency resolution,WVD time frequency resolution has achieved the indefinite principle bottom,has the unique superiority in the nonstationary signal processing te.
非平稳信号处理技术中的Cohen类双线性时频分布技术拥有良好的时频分辨率,其中的WVD的时频分辨率已达到不确定原理下界,在非平稳信号处理技术中有独特优势。
补充资料：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
CAS：38051-10-4
分子式：C13H24Cl6O8P2
中文名称：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
英文名称：2,2- bis(chloromethyl)-trimethylene bis[bis(2-chloroethyl)phosphate]
phosphoric acid, 2,2-bis(chloromethyl)-1,3-propanediyl tetrakis(2-chloroethyl)
2,2-bis(chloromethyl)trimethylene bis(bis(2-chloroethyl)phosphate)
2,2-bis(chloromethyl)-1,3-propanediyltetrakis(2-chloroethyl)phosphate
分子式：C13H24Cl6O8P2
中文名称：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
英文名称：2,2- bis(chloromethyl)-trimethylene bis[bis(2-chloroethyl)phosphate]
phosphoric acid, 2,2-bis(chloromethyl)-1,3-propanediyl tetrakis(2-chloroethyl)
2,2-bis(chloromethyl)trimethylene bis(bis(2-chloroethyl)phosphate)
2,2-bis(chloromethyl)-1,3-propanediyltetrakis(2-chloroethyl)phosphate
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