Papers by Author: Jian Li Ding

Abstract: This paper proposes a modified auditory feature extraction algorithm based on perceptual linear predictive analysis which is more suitable for automatic recognition of aircraft noise. In this algorithm, a different distribution of filter-bank is introduced in order to fit the physical characteristic of aircraft noise and the result shows that the modified method indeed performs better. The effect of Gammatone filter in improving the robustness of recognition algorithm is also demonstrated in the experiment.

Abstract: The key of airport noise monitoring is the appropriate layout of airport noise monitoring points. In this paper, we bring out an optimization algorithm based on the advantages of gray dynamic neural network model in the network training and fitting operations. We use it with the airport noise prediction contour map from INM software to optimize the present layout of airport noise monitoring points in a large domestic hub airport. Experiment results show that the experimental layout of monitoring points program can reflect the distribution of airport noise.