• 利用AD 7764可降低前端抗混叠滤波要求,从而大大简化设计过程。

    Using the AD7764 eases the front-end antialias filtering requirements, simplifying the design process significantly.

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  • 由此,抗混叠滤波器的设计能得到优化。

    As a result, the design of anti-aliasing filters can be optimized.

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  • 提出了一种新的病态混叠盲源分离算法。

    It is proposed a new blind separation algorithm of ill-condition mixed sources.

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  • 文章就采样成像系统中的混叠问题进行了探讨。

    The paper presents a discussion on the aliasing for sampled imaging system.

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  • 一种新的实时线性混叠信号盲分离算法在本文提出。

    A new kind of blind separation algorithm for real time linear mixture signals is presented in this paper.

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  • 本文介绍了在采样系统中如何设计高品质抗混叠滤波器。

    This article shows the reader how to design high quality anti -aliasing filters in sampling system.

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  • 采用模拟低通滤波器降低频谱混叠,提高谐波检测的实时性。

    Simulating low pass filter is adopted to reduce the spectrum alias and improve the speed of harmonic measurement.

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  • 多速率信号处理:滤波、抽样、多相位、完整重建和去混叠。

    Multirate Signal Processing: Filtering, Decimation, Polyphase, Perfect Reconstruction and Aliasing Removal.

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  • 宽动态范围以及显著降低的抗混叠要求,使设计过程得以简化。

    Wide dynamic range combined with significantly reduced antialiasing requirements simplify the design process.

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  • 基于时域混叠信号的特点,提出了一种时间延迟估计的新方法。

    Based on the characters of overlapped echoes, a new method for time delay estimation is presented.

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  • 宽动态范围以及显著降低的抗混叠要求,使设计过程得以简化。

    A wide dynamic range combined with significantly reduced anti-aliasing requirements simplifies the design process.

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  • 实验结果表明,该方法能准确估计出时域混叠信号的延迟时间。

    Experimental results showed the method could estimate the delay time of the overlapped signals accurately.

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  • 在大多数情况下,通过片内滤波可将外部抗混叠要求降至一阶。

    The on-chip filtering reduces the external antialias requirements to first order in most cases.

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  • 方法:用数学方法求解对应于低分辨率遥感图像的统一频谱混叠。

    Methods: the mathematic method is used to find a uniform expression for frequency aliasing matrix of different resolution images.

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  • 该液晶层可以用作使用液晶层的双折射属性的光学抗混叠滤光器。

    The liquid crystal layers can serve as an optical anti-alias filter using birefringence properties of the liquid crystal layers.

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  • 分析了CCD的非线性产生频谱混叠问题,提出了减小频谱混叠的方法。

    The overlapping spectrum caused by the nonlinearity of CCD was analyzed, and the way of reducing overlapping spectrum was presented.

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  • 反之,若信号的频带宽度有限,当进行频域抽样时,时域必然发生混叠。

    Contrarily, if the frequency bandwidth of signal is finite, the time length of signal will be infinite when sampling in frequency domain, the time folding phenomenon will certainly happen.

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  • 数据采集的精度及对数据采集的抗混叠滤波,在电路设计中是很重要的考虑因素。

    The most important factors that must be considered in a data acquiring circuit are the precision and the anti-aliasing filtering.

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  • 用有灰度的象素值去平滑锯齿形边缘的出现,以减小混叠效应的可见性的处理技术。

    The process of reducing the visibility of aliasing by using gray scale pixel values to smooth the appearance of jagged edges.

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  • 至于结构填充和混叠,编译器厂商可能已经隐含地假定只有他们的编译器将被使用。

    As for struct padding and aliasing, the compiler vendor has likely implicitly assumed that only their compiler is to be used.

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  • 还针对编码针孔准直器的投影混叠问题,讨论了投影数据完备性和体积图像的重建方法。

    Because of the projection image overlap due to coded-pinhole collimator, the completeness of projection data and volume image reconstruction algorithm are discussed.

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  • 用超声测量火箭发动机装药包覆层厚度时,当包覆层较薄时检测回波信号会出现时域混叠。

    When the cladding thickness of rocket motor is measured with ultrasonics, the test echoes of the thin cladding will overlap in the time field.

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  • 提出了一种能有效地解决有容差情况下最佳测试节点选取问题的新方法——混叠集分析法。

    With the proposed method, the problem of selecting optimal test nodes to the case of existing tolerance can be solved effectively.

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  • 从理论上导出了光谱混叠公式,并提出了光谱修正方法,仿真实验结果表明该方法简单有效。

    Spectra aliasing formula is obtained in theory and the method of spectra revision is proposed. Simulation results show that this method is simple and effective.

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  • 文章利用抽样定理,首次由频谱的混叠导出物理上可实现的第一类部分响应形成滤波器特性。

    By using Sampling Theorem, the paper first deduce the characteristics of the first class partial response shaping filter that can be realized on the physical from the spectrum overlap.

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  • 本发明认识到,混叠问题往往更多地出现在更接近奈奎斯特极限(采样率的一半)的频率处。

    The invention recognises that alias problems tend to occur more at frequencies nearer to the Nyquist limit (half of the sampling rate).

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  • 该文分析了非线性混叠信号的可分离性及分离条件,指出现阶段非线性混叠信号盲分离的局限性。

    The separability and separating conditions for mixed signals are analyzed in this paper. The limitation of nonlinear blind source separation methods is proposed.

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  • 大量仿真实验表明,在不同的分解级,抗混叠轮廓波变换的每个子带系数都是符合GGD模型的。

    A large number of simulation experiments show that the coefficients of anti-aliasing Contourlet transform is accorded with the GGD model at different decomposition level.

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  • 实验结果表明,选择丹巴天然云母作为色散元件是造成谱线图像相互混叠、相互交错的根本原因。

    The experimental results show that using such natural muscovite as dispersive element is the real reason for interlaced spectrum.

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  • 针对在经验模态分解(EMD)筛选过程中间断信号引起的模态混叠问题,提出了一种新的解决方法。

    Aiming at the mode mixing problem caused by intermittency signal in the sifting process of empirical mode decomposition (EMD), a new solution is presented.

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