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- base frequency information 基频信息
- In the domain of ECM, the frequency information of radar signal is important parameter for signal choosing, menace recognizing and guidance ECM. 在电子对抗领域中,雷达信号的频率信息是信号分选、威胁识别、引导干扰的重要参数。
- Thus, by varying the radar transmitter frequency about some base frequency, the beam can be positioned in one axis. 这样,在几个基础频率附近改变雷达发射机的频率,波束就能指向某一条轴线。
- In order to increase base frequency and reduce weight of HWT, structural optimization and design improvement design are carried out. 以提高基频、减轻质量为目标;对望远镜结构进行了优化计算;根据优化结果对结构进行了改进设计.
- Simulation results indicated that PLE can improve the effect of PPT for maneuvering target with frequency information to some degree. 仿真结果表明,伪线性估计器(PLE)在一定程度上能够改善带频率信息的机动目标被动跟踪。
- The DFT phase detection method can take out frequency, phase and magnitude of the base frequency signal from a random synchronization signal. 离散傅里叶变换可以从任意信号中抽取基准频率倍频次信号的相位、频率和幅值,可以解决谐波对外同步信号的影响,从而实现周期控制锁相环对谐波的识别。
- Ultrasonic Output Frequency The majority of the ultrasonic cleaning that is done in industrial applications today uses 40 kHz as a base frequency. 超声波输出频率目前大多数工业清洗应用中把40千赫作为基础频率,较低的工作频率。
- The R-D method utilizes the spacecraft ephemeris data and Range-Doppler frequency information of the SAR echo data to produce an estimatign of the target position. 摘要距离-多普勒(R-D)定位法是利用卫星星历数据和雷达回波数据的距离-多普勒信息对SAR图像目标进行定位,因无须在视场中选参考点,这对月面目标定位具有重要意义。
- The results show that anomaly frequency method is effective for the analysis of high frequency information characteristics in digital subsurface fluid data. 结果表明,异常频次法是地下流体数字化资料高频信息特征分析及其应用的有效方法。
- Calibration algorithm based on high frequency information of image mainly calibrates motor step of single axis and mechanism backlash in the focus mechanism of microscope. 提出了基于图像高频信息的标定方法,主要从单轴的电机步长和聚焦系统的机械回差角度进行标定;
- Bias current of SOA effect on the amplitude of the output pulse train is great, and there is an optimized bias current of SOA for the base frequency of the 2.5 GHz and 10 GHz, respectively. SOA的偏置电流对SOA环形腔输出脉冲振幅的均衡度影响显著;对于基频为2.;5 GHz和10 GHz输入脉冲序列分别存在一最佳的SOA偏置电流值;
- But as for the non-stationary signal, this tool is not useful because it is a fully time domain or fully frequency domain transform, it cannot provide the frequency information at any local time segment. 但对非平稳信号来说,这种工具就显得力不从心。 因为它是一种全频域、全时域的变换,它将信号从时域变换到了频域,在频域的定位性是完全准确的(即频域分辨率最高),但其在时域却无任何分辨能力,不能提供任何局部时间段上的频率信息。
- In this paper,a differential equation of free vibration for symmetric lamlnae in transversebending was developed,A numerical calculation of base frequency of laminae was performed by finitedifference. 首先建立对称层合板横向弯曲自由振动的微分方程,应用差分法进行层合板基频的数值计算,进而给出测试正交编织纤维铺层的正轴向弹性模量的动态方法。
- Experiment shows that the method can protect the high frequency information like edges from reducing the image’s noise effectively so that the de-noising effect is more protruded. 实验表明,该方法在有效地滤除了图像的噪声的同时,还很好地保护了图像的边缘等高频信息,使得降噪效果更加突出。
- GNSS such as GPS and Galileo (under development by the EU) are primarily intended for navigation and location, but also provide a global system for extremely accurate time and frequency information. 利用全球巡航卫星系统(GNSS),如GPS或伽利略(由欧盟开发)系统,主要用于导航和定位,也可以提供极其准确的全球时间频率信息。
- As the proper gender based frequency is run, the energy flows down the field to the center of the Earth naturally grounding spirit into form. 当正确性别基础上的能量运作时,能量沿能量场向下流到地球中心,自然将灵魂锚定入形体。
- The base frequency laser scribing machine series 基频激光刻膜机系列
- The runner was retired put out at first base. 跑垒者于第一垒上被刺杀出局。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- You cannot enter a military base without a permit. 无通行证者不得擅入军事基地。