Researching the multiresolution time domain (MRTD) and utilizing it to analyze the electromagnetic scattering of a target

in order to illustrate the advantages of the MRTD. First of all

the paper employs the Daubechies-wavelet

which is compact support

to be the basis

reduces the strict calculation formula systematically

while analyzes its character of dispersion and the absorbing boundary conditions-generalized perfectly matched layer (GPML). Then use this algorithm to analyze the electromagnetic scattering of a material ball. At last

the result can be simulated

which is the material ball’s radar cross section (RCS) of two-dimension and tree-dimension

furthermore

compares with other electromagnetic algorithms. With the same requirement of precision

MRTD not only has the good character of dispersion

but also use only half of the irregular cells to the FDTD

meanwhile

the calculation rate can be improve nearly 3 times and it makes the utilization of memory and CPU less. The GPML absorber also has a good effect. According to the result of analysis

MRTD demonstrates a lot of advantages in analyzing the electromagnetic scattering of a target.