| The electromagnetic radiation signals which is caused in coal-rock dynamic disasters are sudden and continuity,their noise frequency band is very wide and paroxysmal pulse signal.The large number of experimental results show that the electromagnetic radiation signal generated by coal rock fracture is more obvious,and it is mainly used to predict the electromagnetic radiation signal.It is easy to be interfered by the electromagnetic signal and the transmission distance is near.It is important to achieve real-time and accurate measurement of electromagnetic radiation signals of coal and rock,so that it can accurately obtain the information of electromagnetic radiation of coal rock burst.A real time monitoring system of electromagnetic radiation signals of coal based on DSP and FPGA is developed in this paper.FPGA algorithm for the acquisition of electromagnetic radiation signal FFT algorithm,and then the data is transmitted to the DSP signal data using fast independent component analysis(ICA)algorithm for denoising processing,the processed data will be processed by LabVIEW.The system can collect and deal with the electromagnetic radiation signal generated by the coal bearing rock in real time.The system can improve the reliability and accuracy of the system. |
