Matrix Cholesky decomposition coprocessor and system thereof

The invention relates to signal processing, in particular to a matrix Cholesky decomposition coprocessor and a system thereof. The matrix Cholesky decomposition coprocessor decomposes a positive definite symmetric matrix A into a product of a lower triangular matrix L and an inverted matrix of L; comprising an adder for executing additive operation, a divider for executing division operation, a multiplier for executing multiplication operation, a root extractor for executing root extraction operation, an input temporary storage area for storing a positive definite symmetric matrix A, an output temporary storage area for storing a lower triangular matrix L, a data mixer for data mixing and a multiplexer for data source selection, and a temporary value storage module for storing a temporary value. Based on a hardware implementation mode, the number of software instructions needing to be executed can be remarkably reduced, so that the real-time performance of the system is improved, and the power consumption of