| In this paper , the precise integration method is used to solve the telegraph equations. The results show that this method is simple , accurate and stable. Especially, not using the tedious and complex transform between frequency-domain and time-domain as well as convolution inte- grals , this method perform analysis in time-domain directly and treat the nonzero initial value much easier. Compared with the traditional methods based on the FFT and the NILT , thismethod is more efficient and powerful. |