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对ＢＰ算法的突出问题———收敛性进行分析，综合汇集了五条改进措施，提出一种新的算法．计算机仿真结果表明，该算法对于连续函数，收敛效果较佳；用于正弦函数，迭代１５次即满足误差精度要求Ｅｍａｘ＝１０－３．
This paper analyzes the convergence of BP algorithm, which is a salient problem of BP algorithm. It brings together five improvement measures and proposes a new algorithm. Computer simulation results show that the proposed algorithm has a better convergence effect for continuous functions. For the sine function, iterative 15 times satisfies the error precision requirement Emax = 10-3.