1979年J.E.Shore提出的最小交叉熵谱分析法,由于运算复杂,且迄今未公布其算法,因而它的发展远不如其他普分析方法迅速。本文按Shore法及Tzannes法的准则独立地编制出了算法程序,并通过实例计算对这二种方法作出了评价。鉴于这些迭代算法过于复杂,本文提出一种新的解析和递推算法——倒谱法。计算表明,新算法的性能与前二法相似,但计算时间可大大缩短。 The minimal cross-entropy spectroscopy proposed by J.E. Shore in 1979 has been far less developed than other general analysis methods due to its computational complexity and the fact that its algorithm has not been published so far. According to the Shore method and the Tzannes method, this paper independently compiled the algorithm program, and evaluated the two methods by example calculation. In view of the complexity of these iterative algorithms, this paper presents a new analytic and recursive algorithm - cepstrum. The calculation shows that the performance of the new algorithm is similar to that of the previous two methods, but the computation time can be greatly shortened.