Thus, in OFDM communication sytems, carrier frequency offset must be estimated and compensated at the receiver to minimize the effects of intercarrier interference and maintain orthogonality.

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However, for mobile applications, channel variations within an OFDM block period destroy the orthogonality between subcarriers; the effect, known as Intercarrier Interference, will degrade the system performance.

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Time variations corrupt the orthogonality of the OFDM subcar-rier waveforms so that intercarrier interference occurs.

OFDM系統(tǒng)對時間選擇特性信道非常敏感，Doppler頻移的出現(xiàn)會造成OFDM系統(tǒng)子載波不再正交japan黄片在线看，對系統(tǒng)引入載波間干擾洲黄色网站。

Compared with scalar wavelets, multiwavelet offers simultaneous orthogonality, symmetry and short support, which is not possible for scalar wavelets, and it plays an important role in the signal processing. Especially in increasing identification efficiency and reducing misdeem ratio of aviation picture in military reconnaissance, multiwavelet plays a more important role.

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There is abrupt phase change in nonsinusoidal waves modulation. It can easily produce impulse current and bring large difficulty to high-power emission system; so it is not beneficial to holding the orthogonality between the orthogonal pulses and demodulating information.

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We know that if the prefilter is nonorthogonal, the discrete orthogonal multiwavelet transform will not preserve the orthogonality.

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Certain relevant concepts for Integal-Period Sampling , such as the orthogonality of the trigonometrical functions, Fourier coefficents, and aliasing effect etc. are extended to the case of NIPS.

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Based on the conclusion, we adopt a new method to eliminate multiples, which is to use the statistic character of error, obtain inverse wavelet's estimation, correct misshaped inverse wavelets for non-orthogonality in inverse wavelet domain by the estimation. The method mainly has four steps.

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Taking the problem of vertical vibration of a rod as an example,the physical meaning of the second type of orthogonality of eigenfunctions of the Sturm-Liouville...

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There is another type of orthogonality of eigenfunctions of the Sturm-Liouville problem as follows:∫badx+hymyn+Hymyn=0.

斯圖姆—劉維爾型特征值問題中特征函數(shù)存在另外一類正交關(guān)系黄色网站入口观看，就是：ba∫dx+hymyn+Hymyn=0久久无码人妻中文系列，稱此正交關(guān)系為第二類正交關(guān)系。