首页> 外文会议>Asia-Pacific Microwave Conference vol.4; 20051204-07; Suzhou(CN) >Improved BP arithmetic in measuring tobacco moisture by resonant microwave sensor
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Improved BP arithmetic in measuring tobacco moisture by resonant microwave sensor

机译:共振微波传感器用于烟草水分测量的改进BP算法。

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摘要

Measurement accuracy of moisture is influenced by conventional linear regression mainly using microwave resonator. Based on improved BP arithmetic, a regression is presented to calibrate the measurement results. First, GA is used to pre-optimize the regressive neural network for its global search ability, parallel processing and strong robust. Then the gradient descent method of BP arithmetic is integrated to avoid getting into infinitesimal locally effectively and keep the merits of high prediction precision and rapid convergence. The experiment shows there is a great improvement between the predicted value and the real one.
机译:水分的测量精度主要受微波谐振器的影响,受常规线性回归的影响。基于改进的BP算法,提出了回归以校准测量结果的方法。首先,由于其全局搜索能力,并行处理和强大的鲁棒性,GA被用于预优化回归神经网络。然后结合BP算法的梯度下降法,避免局部有效地陷入无限小,保持了预测精度高和收敛速度快的优点。实验表明,预测值与实际值相比有很大的提高。

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