1) multi-frequency
多频率
1.
With DDS and programmable SCF,a good attenuation of the 50Hz and its harmonic wave and a stable gain in multi-frequency measurement is ensured.
本文提出一种复阻抗在线测量系统的实现方案,采用DDS和可编程开关电容滤波器,保证了对50Hz电网谐波的滤除以及多频率下增益的稳定性,实现了多频率下对复阻抗的精确测量。
2) multifrequency
[,mʌti'fri:kwənsi]
多频率的
3) Doppler frequency
多普勒频率
1.
Based on traditional techniques of passive location,single-station passive location is achieved by adding observation information,which is bearing and Doppler frequency joint location method.
在传统的无源定位技术基础之上,采用增加观测信息量的方法来实现单站无源定位,即方位/多普勒频率联合定位技术。
2.
When detecting the high-speed moving target by using phase-coded signals,Doppler frequency compensation is necessary because of the Doppler frequency sensitivity of phase-coded signals.
利用相位编码信号探测高速运动目标时,存在多普勒频率敏感性问题,需要对多普勒频率进行补偿。
3.
Amplitude distortion and phase distortion of signal caused by radar transmitter and receiver and Doppler frequency produced by target radical movement are three key factors that influence the performance of pulse compression.
由雷达发射、接收系统导致的信号幅度、相位失真以及由目标径向速度导致的目标多普勒频率是影响脉冲压缩性能的三个主要因素。
4) multi-output frequency
多输出频率
5) multiple frequencies constraints
多频率约束
1.
Dynamic topological optimization of griddle under multiple frequencies constraints;
多频率约束下振动筛动态拓扑优化设计
6) polyfrequence
频率多参考
1.
It analyzed the test data using polyfrequence modal analysis method,and then got the modal parameters and dynamic characteristic.
本文采用单输入多输出(SIMO)的模态试验方法对圆筒法兰连接结构的下圆筒进行了自由状态下的模态试验,用频率多参考(Polyfrequence)的模态拟合方法分析试验数据,获得了结构的模态参数,对其动态特性有了初步了解,试验结果可为圆筒法兰连接结构动力学建模提供模型修正数据。
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