实验结果表明：对于含有目标信息的起伏背景图像，背景对消的最佳滤波方法，应采用开余滤波法。

Then, the experiment results show that in all of four filtering methods, the open residue filtering method is the best for background drop.

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本文介绍了一种确定反卷积的最佳滤波参数的新方法。

In this paper, a new method to determine the optimum filtering parameters of deconvolution is presented.

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针对F I r正交滤波器方法的缺点，本文根据函数逼近理论，在理论上，证明了正交小波函数可以最佳一致逼近理想滤波器。

After deficiencies of the FIR based orthogonal filter are analyzed, this paper, based on function approximation, theoretically proves that orthogonal wavelets can best approximate the ideal filters.

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