This paper proposed a new sampling plan, the sequential mesh test, in order to overcome the disadvantages of the widely used Sequential Probability Ratio Test (SPRT).

In this paper, the Sequential Probability Ratio Test (SPRT) is introduced to cryptanalysis to reduce the amount of keys needed in correlation attacks.

A new passive tracking initiation algorithm, the Sequential Probability Ratio Test (SPRT) algorithm based on detection with multidimensional variable tracking gate, is proposed in this paper.