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- 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。
- 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 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；
- 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。
- 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。
- Signal Recognition Method Utilizing Frequency Information 一种利用频率信息进行信号识别的方法
- Passive locating of maneuvering target with frequency information 带频率信息的机动目标被动跟踪
- He varied the transmission frequency. 他变换了无线电传送的频率。
- Study on Transfer of Ultra Low Frequency Information 超低频信息传递的发射装置设计
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- An Audio Frequency Information Hiding Scheme Based on Linear Interpolation 一种基于线性内插的音频信息隐藏方案
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- The Construction And Application Of Video Frequency Information Network 视频信息网的建设与应用
- Study on the management system of police video frequency information 公安视频信息管理系统的研究
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
