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代码说明：

  包括最后计算压缩图像的峰值信噪比和压缩效果的源码,包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，DSmT证据推理的组合公式计算函数。( Including the final calculation of the compressed image peak signal to noise ratio and compression of the source, Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Combination formula DSmT evidence reasoning calculation function.)