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Disributed Principal Component Analysis for Data Compression of Sequential Seismic Sensor Arrays

机译:序贯地震传感器阵列数据压缩的分布式主成分分析

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This work considers the data compression of sequential seismic sensor arrays. First, the statistics of the seismic traces collected by all the sensors are modeled by using the mixture model. Hence, a distributed Principle Component Analysis (PCA) compression scheme for sequential sensor arrays is designed. The proposed scheme does not require transmitting the traces, leading to a more efficient computation and compression compared with the conventional local PCA compression. Furthermore, an efficient communication scheme is developed for the sequential sensor array for delivering the local statistics to the fusion center. In this communication scheme, the sensors update and pass a data package consisting of cumulative variables. The size of the data package does not increase throughout the process, which is more efficient than the direct communication scheme. Finally, the performance of the proposed scheme is evaluated by using both real and synthetic seismic data.
机译:这项工作考虑了序贯地震传感器阵列的数据压缩。首先,通过使用混合模型建模所有传感器收集的地震迹线的统计数据。因此,设计了用于顺序传感器阵列的分布式原理分析(PCA)压缩方案。所提出的方案不需要发送迹线,导致与传统本地PCA压缩相比更有效的计算和压缩。此外,为顺序传感器阵列开发了一种有效的通信方案,用于将本地统计数据传送到融合中心。在该通信方案中,传感器更新并通过由累积变量组成的数据包。数据包的大小在整个过程中不会增加,这比直接通信方案更有效。最后,通过使用真实和合成地震数据来评估所提出的方案的性能。

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