多频率,multi-frequency
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。
英文短句/例句

1.Height Reconstruction Using Multifrequency InSAR Data;多频率InSAR高程信息重建算法研究
2.Frequency mondulation, which is not possible with polychromatic light.多色光不可能调制频率。
3.Design and Analysis of Frequency Synthesizer for Multiband Radio;多频段电台频率合成器的设计与分析
4.Software-defined frequency synthesizer for multi-frequency HF surface wave radar软件化多频地波雷达频率合成器设计
5.Multi-Band Frequency Selective Surfaces Based on SRR Metamaterials基于SRR结构的多频带频率选择表面
6.Instantaneous frequency rate estimation of multicomponent two-dimensional chirp signals多分量二维线性调频信号瞬时频率变化率估计
7.A PLL Frequency Synthesizer with High Multiple-Frequency一种多倍频选择的高倍频锁相环频率合成器
8.Difference between Doppler Frequency and Azimuth Frequency and Its Influence on the Azimuth Resolution of Spaceborne SAR星载SAR方位向频率与多普勒频率的差异及其对成像分辨率的影响
9.Research on Multi-Resolution Spectrum Algorithm Based on Multi-Rate System基于多抽样率系统的频谱多分辨率算法研究
10.The study of FH/MCFD/SSMA wireless communication systems跳频/多载波频率分集/扩频多址无线通信系统的研究
11.image frequency像频;镜频;镜频;镜像频率;镜像频率;帧频
12.The Doppler frequency can be obtained as a heterodyne or beat effect.由于外差或频差效应,能够得到多普勒频率。
13.Modulation-Free Laser Frequency Locking by AOM Shifted Cesium Sub-Doppler Spectra声光偏频亚多普勒光谱无调制激光频率锁定
14.Research and Design of CMOS Multi-band RF Power Amplifier;射频CMOS多频段功率放大器的研究与设计
15.FH Frequency Multi-step Prediction Method Based on Degree of Incidence and Simulation基于关联度的跳频频率多步预测方法与仿真
16.New Frequency Track Technology Based on Multi-cycle Synchronization and Frequency Multiplication Phase-lock新型多周期同步和倍频锁相的频率跟踪技术
17.Fusion Algorithm for Frequency Estimation of Multi-Section Signals with Same Frequency and Length频率估计的一种多段同频等长信号融合算法
18.How often do you update your wardrobe with trendy items?更新衣柜里流行服饰的频率有多高?
相关短句/例句

multifrequency[,m?ti'fri:kw?nsi]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。
延伸阅读

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