Influence of transmitter motion on received signal parameters – Analysis of the Doppler effect

The result of the theoretical analysis of the electric field strength generated by a moving signal source is presented in this paper. The wave equation with source function taking a signal source motion into consideration is the basis of the analysis problem. To solve of the wave equation we have applied integral transformations i.e., the Laplace transform (with respect to normalized time variable) and the Fourier transform (with respect to space variables). The solution form of the analysis problem has been constructed as following: at first, we use the Cagniard-de Hoop’s method to calculate the inverse Fourier transform and next we apply inverse Laplace transform. As a numerical example, the influence of the velocity and the space location of a transmitter motion trajectory on the Doppler frequency is presented.