The monotone sum of product expansions of monotone Boolean functions and its constructive algorithm are presented in this paper. The implementation of the algorithm is very intuitive.

本文给出单调布尔函数的一类范式——单调积之和展开式以及构造它的算法，该算法的实现是很直观的。

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A variable step uniform quantization(VSUQ) sum-product algorithm(SPA) was developed to reduce the hardware complexity of low-density parity-check(LDPC) code decoding.

为降低低密度奇偶检验码译码的硬件实现复杂度，提出了一种可变步长均匀量化“和积”译码算法。

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This article shows that the sum-product decoding algorithm for the LDCC can be improved with a local probabilistic propagation algorithm.

LDCC码的和积算法译码方法可以进一步改进为局部概率传播译码方法。

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