In the study of cycle frequency hopping mechanism, two ways of realizing frequency hopping are given, one is DFT matrix transform, the other is zero-padding method, and Matlab simulation and analysis are done.
在研究了循环跳频的机理之后,给出两种实现方法,一种是DFT矩阵变换实现跳频,另一种是补零法实现跳频,并进行了matlab仿真和分析。
Frequency method and Bayesian method are the two main data mining algorithms used in pharmacovigilance nowadays.
目前各国普遍使用的数据挖掘方法主要有频数法与贝叶斯法.
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