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ideal frequency domain filter (IFDF) 理想频域滤波器
ideal frequency domain filter(IFDF) 理想频域滤波器
Research on suppression of narrowband jammer using frequency domain filter with adaptive energy threshold 抗窄带干扰自适应能量判决门限频域滤波器的研究
frequency domain filtering 频域滤波
frequency domain filter 频域滤波
The algorism for frequency domain use FFT to realize. 频域算法采用了快速傅立叶变换实现；
The frequency domain, the holograph and related concepts have all been used. 频率域、全息及有关的概念都已采用。
Image enhancement in frequency domain using Fourier center frequency, Gaussian lowpass filter, Low pass filter, high pass filter. Image restoration using medean filter, weiner filter with noise genera (译)：图像增强的频域利用傅里叶中心频率，高斯低通滤波器，低通滤波器，高通滤波器。
But resampling in the frequency domain will causes replicas occur in the spatial domain if we do not use any reconstruction filter. 但是它会有频域空间再取样的问题，导致重叠影像的失真现象，因此滤波器的设计对傅立叶立体资料描绘法是非常重要的研究主题。
Finally, it is easy to move form the Laplace domain into frequency domain. 最后，从拉氏域转换到频率域也很容易。
A comparison of IIL with OAI in theory and frequency domain is given. 从成像原理和频域范围的角度对IIL和OAI进行了理论研究、计算模拟和对比分析。
This paper presents a new frequency domain deghosting method on the basis of analyzing both the ghost formation mechanism and its filter spectrum characteristics. 在分析了虚反射的形成机制及其滤波器频谱特性的基础上,提出了一种在频率域剔除地震鬼波的新方法。
According to the least quantization error criterion of optical wavelet filter in space domain and frequency domain, an optimal wavelet was constructed based on lifting algorithm. 根据光学小波滤波器的空、频域量化误差最小原则，基于提升算法，构造出空、频域量化误差最小的最优小波。
Passes the filter to belong to the frequency domain image intensification method high, applies widely in the actual image intensification, can realize the image peaking. 高通滤波器属于频率域的图像增强方法，在实际图像增强中应用广泛，能够实现图像的锐化。
In this paper, the necessity of antialiasing filtering by using antialiasing filter is demonstrated by the theory of digit signal processing of the time domain and frequency domain of input signal in signal processing device. 本文从信号处理设备对输入信号进行时域和频域数字信号处理的角度;论述了采用抗混滤波器进行抗混滤波的必要性.
A Wiener weighting adaptive time delay estimation algorithm based on frequency domain is presented. 提出了一种基于频域自适应滤波的维纳加权时延估计算法。
To indicate the effect of gyro moment on the mount system, including frequency domain response and time domain response, the new system was analyzed. 对新的动力总成悬置系统动力学模型进行计算分析，研究了陀螺矩阵对频域、时域响应的影响。
Frequency domain:total frequency components(TF),low frequency components(LF),high frequency components(HF). 频域分析:总频谱成分(TF),低频成分(LF),高频成分(HF)。
It is better to group pilot tones together into clumps that are equispaced in the frequency domain. 可以证明，在快时变环境下，分组且每组等间隔分布于频域上的导频序列有着更好的系统性能。