A block-iterative surrogate constraint splitting method for quadratic signal recovery
A block-iterative surrogate constraint splitting method for quadratic signal recovery
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DOI：
10.1109/tsp.2003.812846
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发表时间：
2003-07
期刊：
影响因子：
--
通讯作者：
P. Combettes
中科院分区：
文献类型：
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作者：
P. Combettes
提出了一种块迭代并行分解方法来解决凸约束下的一般二次信号恢复问题。所提出的方法通过约束块的局部线性化进行，因此对其分析复杂性不敏感。此外，由于其灵活的块迭代结构，它自然适合在并行计算架构上实现。与现有方法进行了比较，并讨论了约束不一致的情况。给出了数值结果。
A block-iterative parallel decomposition method is proposed to solve general quadratic signal recovery problems under convex constraints. The proposed method proceeds by local linearizations of blocks of constraints, and it is therefore not sensitive to their analytical complexity. In addition, it naturally lends itself to implementation on parallel computing architectures due to its flexible block-iterative structure. Comparisons with existing methods are carried out, and the case of inconsistent constraints is also discussed. Numerical results are presented.