序贯概率比检验是数理统计学的一个分支，其名称源出于亚伯拉罕·瓦尔德在1947年发表的一本同名著作，它研究的对象是所谓“序贯抽样方案”，及如何用这种抽样方案得到的样本去作统计推断。序贯抽样方案是指在抽样时，不事先规定总的抽样个数（观测或实验次数）,而是先抽少量样本,根据其结果，再决定停止抽样或继续抽样、抽多少，这样下去，直至决定停止抽样为止。反之，事先确定抽样个数的那种抽样方案，称为固定抽样方案。
sequential probability ratio test : 序贯概率比检验 generalized sequential probability ratio test : 广义序贯[逐次]概率比检验 SPRT (sequential probability ratio test) : 序贯概率比检验 ..
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Secondly, the decision function has been improved for eliminate detection delay-time.2. Some methods to calculate the average quantity of leakage, average time of leakage, the total quantity of leakage, are presented based on Multi-Sequential Probability Ratio Test.3.
针对序贯概率比检验法所存在的备选假设难以确定及检测延迟等问题,首先以检测各种泄漏所需时间的期望为目标函数,通过对目标函数的求解,确定了优化的备选假设;其次对判决函数进行了改进,消除了检验延迟。
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本文把序贯概率比检验引入到密码分析中，用来约减相关攻击所需的密钥量。
In this paper, the Sequential Probability Ratio Test (SPRT) is introduced to cryptanalysis to reduce the amount of keys needed in correlation attacks.
在对蓝牙生成器的相关攻击中，采用序贯概率比检验可把所需密钥量约减到原来的36.6%。
In the correlation attack to "Bluetooth Generator", the keys needed with SPRT are only 36.6 percent of that with traditional methods.
针对序贯概率比检验（SPRT）无法控制抽取样本量等不足之处，提出了一种改进的抽样检验方法——序贯网图检验。
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).
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