The theoretical research of the dependable database concentrates on the multi-layer safe database, access controlling, database encoding, channel control and so on.
安全数据库的理论研究主要集中在多级安全数据库、访问控制、数据库加密与推理通道控制等领域。
The subject of this paper mainly focuses on the research of new algorithms and proposes the channel estimation principle explicitly: separate the estimation of multi-path amplitude and delay.
本文主要致力于研究新的信道估计算法，明确提出了将多径信道的时延估计和幅度估计分开的信道估计方案。
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