Based On Simulated Annealing Algorithm For Synthetic Aperture Sparse Antenna Array Design,

The spatial resolution of traditional microwave radiometer system is low, This is an important factor that limits radiometer system widely used. In the 80s' last century,people develop the synthetic aperture radiometer system, this technology improved the contradiction of spatial resolution and the physical size of antenna. How to design the antenna array is zhe first problem need to solve in synthetic aperture radiometer system.According to the fourier transform,the antenna is made a distribution on rectangular mirror blanks, so, the design of the antenna array can be reduced to a problem of some antenna,s combinatorial optimization.SA is an algorithm of global.it has strong capability in local searching. This thesis use the traditional models of SA to search the best antenna array in line. Because of the SA's searching capability is not enough,so,use SA-GA algorithm in the 2-D design of antenna array, and then, compare with the result searching by the SA-GA with the "U" array.This thesis make msc dytran of the designed antenna array in the condition of airplane in matlab, and verified the antenna array to achieve the required for spatial resolution. Finally. Analysised the direction of antenna, position and antenna is coupled to the effect of the picture.