To reduce the influence of noise, the initial result was optimized with the Levenberg-Marquardt algorithm.
为了降低噪声影响，使用非线性优化算法优化初值。
Using backpropagation neural network based on Levenberg-Marquardt algorithm, the universal characteristics of engine were investigated.
采用基于L - M算法的BP神经网络对某发动机万有特性进行研究。
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