Filter is used to transmit spectrum of definitive broad band in the continuous spectrum or to extract certain radiation in the line-spectra.

光学滤光片在连续的光谱中用于透过一定宽度的光谱带或在线状光谱中提取某些辐射。

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A new microstrip bandpass filter is proposed on the based of traditional square filter in this paper, which solves the problems of radiation loss and big volume in the traditional filter.

在传统方形双模滤波器的基础上，提出了一种新的微带带通滤波器结构。该结构很好解决了传统滤波器的辐射损耗和体积大等问题。

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Considering the radiation problem of filtering resulting from the inaccurate model of the Kalman filter, data fusion algorithm based on the fuzzy Kalman filter is advanced.

并针对卡尔曼滤波因模型不准确而导致的滤波发散问题，提出了模糊卡尔曼的数据融合算法。

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