Hohai University

State Grid Jiangsu Electric Power Company

State Grid Jiangsu Electric Power Company Nanjing Power Supply Company

Ning Jiang

Chunning Wang

Kai Li

Honghua Xu

Hongzhong Ma

Bingbing Chen

Hongyu Jiang

The noise suppression method of individual active noise reduction system comprises the steps that: (1) initial noise digital signals are received and converted to serve as input signals of a BP neural network; (2) the input signals are processed to generate secondary digital signals; (3) the secondary digital signals are output to a loudspeaker and secondary noise is generated; (4) remained noise digital signals obtained by overlapping the initial noise and the secondary noise are received; whether remained noise digital signals is continuously constant for the set times is judged; if yes, the secondary digital signals are kept outputting; (5) if not, BP neural network parameters are optimized and adjusted with the amplitude of the remained noise digital signals being minimum as the optimality principle; remained noise digital signals of previous step are served as new input signals and the step (2) is executed again.

Transformer noise suppression method

Growing community of inventors

Nanjing, China

Ning Jiang