... frequency drift 频率漂移 frequency filtering 频域滤波，频率滤波 frequency hopping 跳频，频率跳动 ...
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... Frequency-Domain Equalization 频域均衡 frequency-domain filtering 频域滤波 frequency-domain solution 频域法 ...
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...y Domain）第五节 幅值平方相干函数（Magnitude-Squared Coherent Function）第六节 频域滤波（Filtering in Frequency Domain） 第一节 傅立叶变换… .
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In the study of adaptive Gaussian frequency filter, we introduce its characteristics and application assumptions.
介绍了自适应高斯频域滤波器的特点及其抑制地物杂波的应用前提。
参考来源 - 多普勒天气雷达地物杂波时域和频域抑制研究Secondly, we study SAR moving targets detection methods based on clutter suppression, such as spectral-filter, multi-look clutter cancellation and FrFT. The spectral-filter method has simple process and small account of conputing.
其次本文研究了基于SAR杂波抑制的动目标检测方法,包括频域滤波法,子视对消法和改进的分数傅立叶变换法。
参考来源 - SAR地面动目标检测方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
同时也分析了空域滤波、空频域滤波、光学成像系统。
The filtering in spatial domain, spatial frequency domain and a system of optical formatting imagines are also analyzed.
根据颤振试验的原理和观测信号特点，提出一种时频域滤波方法。
According to the principles and signal properties of flutter test, a new filtering algorithm in time-frequency domain is presented.
最后采用频域滤波技术，识别出指定频率段对车内噪声偏好性的影响。
Finally, frequency filtering technique is adopted and combined with the regression equation to reveal the effect of the designated frequency range on in-car noise preference.
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