在基本的矩阵运算中，运用适当的矩阵分块，GPU的计算速度比CPU快50倍左右。
In the fundamental operations of large scale matrice, computing speed of GPU can be 50 times faster than CPU on the suitable matrix blocking.
本文提出了一种新的分块联合检测算法，将需要运算的矩阵进行分块处理，以降低运算量。
A new joint detection algorithm based on block is developed. Matrix is divided into several blocks to decrease the complexity.
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