1) imaginary vibration
虚频
2) dummy frequency agility
虚拟跳频
1.
This method used wavelet analysis,combined with dummy frequency agility,which was used to eliminate the correlation of adjacent echo pulse and achieve statistic effect by changing phase series on many occasions.
该方法引入虚拟跳频技术,并与小波分析相结合,更好地进行了杂波抑制。
2.
Based on the principle of high frequency ground wave radar in realization and the basic principle of the target s angular glint,the target s angular glint in the echo signals of radar are suppressed by dummy frequency agility.
本文基于高频地波雷达的实现原理,和目标角闪烁的基本原理,对雷达回波信号采用虚拟跳频的处理方式来抑制目标角闪烁。
3) virtual frequency conversion
虚拟变频
1.
Software subdivision and "virtual frequency conversion" technology were adopted in this solution,which realized multigrade,adaptive subdivided drive in operation of stepping motor.
该方法采用软件细分、"虚拟变频"技术,实现了步进电动机多档位、带电自适应细分驱动。
4) false alarm frequency
虚警频率
5) virtual time-frequency
虚拟时频
1.
Spatial higher order time-frequency distribution and virtual time-frequency ESPRIT algorithm;
空间高阶时频分布及虚拟时频ESPRIT算法
6) Word Frequencies
虚词频率
补充资料：九日逢虚中虚受
【诗文】：
楚后萍台下，相逢九日时。干戈人事地，荒废菊花篱。
我已多衰病，君犹尽黑髭。皇天安罪得，解语便吟诗。
【注释】：
【出处】：
全唐诗：卷842-29
楚后萍台下，相逢九日时。干戈人事地，荒废菊花篱。
我已多衰病，君犹尽黑髭。皇天安罪得，解语便吟诗。
【注释】：
【出处】：
全唐诗：卷842-29
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