Prediction method for shearing parameters of Martian soil based on GA-BP neural network
A GA-BP, neural network technology, applied in the field of Mars exploration, can solve problems such as initial weight sensitivity, poor global search ability, slow convergence speed, etc., and achieve the effect of optimizing weights and thresholds
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[0031] see Figure 1-3 , the present invention provides a kind of technical scheme: the Martian soil shear parameter prediction method based on GA-BP neural network, it is characterized in that, comprises the following steps:
[0032] S1, determine the weights and thresholds of the BP network; use the improved genetic algorithm to optimize the weights and thresholds of the neural network: first encode the weights and thresholds of the BP neural network; select and cross the weights and thresholds according to the fitness function , The mutation operation obtains new weights and thresholds until the training error reaches 0.001, otherwise continue to optimize to obtain weights and thresholds;
[0033] S2, establishing a BP prediction model;
[0034] S3, train the BP model to predict the Martian soil shear parameters;
[0035] The specific steps of S1 based on the weight and threshold of the GA-BP neural network include:
[0036] S11, the weights and thresholds of the neural ...
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