“涉及”和“涉及到”

有些学生在习作中使用“涉及”这个词语时，喜欢在“涉及”后面加“到”。这一现象在语文老师中引起了一些讨论。有些老师根据《现代汉语词典》里“涉及”的释义为“牵涉到、关联到”，认为“涉及”这个词本身就包含有“到”的意义，使用时不应加“到”，否则语义重复，不合汉语语法。持这种观点有一定的道理。

从“涉”到“涉及”再到“涉及到”——探索“涉”语义虚化历程并试分析现代语境“涉及”“涉及到”并存问题

本文首先说明“X及”词群的共同特征与“涉及”的特殊地位,接着通过追溯“涉”的语义虚化和语法化历程以论证“涉及”成为“X及”词群词义基础,最后结合现代汉语运用浅析“涉及”“涉及到”在日常用语中的并存现象以及“涉及到”的语义重复何以可能的问题。

A method of multi-channel reference signals acquiring in broadband ANC

In a flank array on an unmanned underwater vehicle （UUV）, self-generated noise which has broadband and colored spectrum property in frequency and spatial domain is the main factor affecting the performance of weak signal detection, so the technique of adaptive noise cancellation （ANC） as well as physical denoising and active noise cancellation are often used in practice. Because ANC is based on correlations, improvements in performance come from better correlation between reference signals and primary signals. Taking full advantage of the characteristics of flank arrays and the characteristics of information obtained from hydrophones, a new method for reference signal acquisition for adaptive noise cancellation is proposed, in which the multi-channel reference signals are obtained by accurate delaying for a given direction of arrival （DOA） and differencing between adjacent outputs of array elements. The validity of the proposed method was verified through system modeling simulations and lake experiments which showed good performance with little additional computational burden.