Further, the periodicity of the filtering system model is analyzed and the feasibility to realize periodic filtering gain is discussed.

并进一步分析了滤波系统模型的周期性，探讨了实现周期滤波增益的可行性。

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Existence conditions and analytical expression of the desired performance robust filtering gain are obtained. A numerical example demonstrates...

给出了期望鲁棒滤波增益的存在条件及其解析表达式，并以数值算例说明了设计方法的直接性与有效性。

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Search engine and text filtering technique are all used to help users to gain information they need quickly and precisely.

搜索引擎和文本过滤技术都是为了帮助用户快速、准确地获取用户需求的信息。

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Information about Blue Coat in Syria began to trickle out in August, after a "hacktivist" group called Telecomix managed to gain access to unsecured servers on Syria's Internet systems and found evidence of Blue Coat filtering.

WSJ: Blue Coat Acknowledges Syria Used Its Gear for Internet Censorship Amid Arab Spring