Research on Spectrum Decomposition of Laser Power Equipment Beam Shaped Signal under Visual Communication
The spectral decomposition of beam shaped signals can to some extent ensure the smooth operation of laser power equipment.The repeated discharge process in laser power equipment usually has a very high frequency,which may reach several thousand times or even higher per second.Meanwhile,the repeated discharge process may involve multiple frequency components and different amplitudes,which can be very complex,increasing the difficulty of spectral decomposition.Therefore,repeated discharge is a difficult problem in the spectrum decomposition process.Therefore,based on the consideration of repeated discharge,a spectral decomposition method for beam shaped signals of laser power equipment under visual transmission is proposed.Firstly,a laser vision sensor is used to collect the beam shape signal of power equipment under repeated discharge conditions.The two factors that affect repetitive discharge,voltage and resistance are analyzed.The generation mechanism of beam shaped signals is explored,and the transient spectrum expression of beam out-put is obtained.By using the Doppler bandwidth signal model,the estimated target parameters of the beamform signal are obtained,and the maximum peak and valley difference of the beamform signal is obtained through multi-dimensional wavelet decomposition.The decomposi-tion is completed by combining the spectral energy distribution characteristics.Simulation experiments have shown that the decomposed signal spectrum has a high matching degree with the original signal,and has certain practical application performance.
visual transmissionlaser power equipmentbeam shaped signalspectrum decompositionmulti-dimensional wavelet decomposition
万方数据
维普
