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线性过程方差变点估计的相合性及收敛速度 被引量:1

Consistency and Convergence Rate of Estimation of Variance Change Point in Linear Process
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摘要 针对线性过程估计精度的问题,运用累积和(CUSUM)方法研究线性过程随机变量序列方差变点问题,在均值不变的条件下,证明方差变点CUSUM型估计的相合性,并且给出它的强弱收敛速度. Aiming at the problem of linear process estimation accuracy,the cumulative sum(CUSUM)meth⁃od is used to study the variance change point of the random variable sequence of the linear process.Under the condition of the unchanged mean value,the consistency of the variance change point estimation is proved,and their convergence rate is given.
作者 董三英 魏岳嵩 张婷婷 DONG Sanying;WEI Yuesong;ZHANG Tingting(School of Mathematical Sciences,Huaibei Normal University,235000,Huaibei,Anhui,China)
出处 《淮北师范大学学报(自然科学版)》 CAS 2021年第3期6-11,共6页 Journal of Huaibei Normal University:Natural Sciences
基金 安徽省高校自然科学研究项目(KJ2018A0384) 安徽省省级质量工程项目(2020JXTD232)。
关键词 方差变点 线性过程 CUSUM 相合性 收敛速度 change point in variance linear processes CUSUM consistency convergence
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