穿墙雷达方位向分辨率研究

Study on azimuth resolution for through-wall radar

给出有墙体影响下的方位向分辨率计算公式,即L-W公式和A-W公式,并数值分析了取不同折射率的墙体方位向分辨率、误差和相对误差随墙体厚度的变化情况。结果表明:L-W公式和A-W公式计算的方位向分辨率随不同墙体厚度的增加而增大;在相同厚度处,墙折射率越大,方位向分辨率误差及其相对误差也越大;L-W和A-W公式计算方位向分辨率时,L-W公式更能精确地体现目标辨识能力。

The azimuth resolution calculation formulas with effect of the wall are presented,that is L?W formula and A?W formula. The relationship between the wall azimuth resolution,errors and relative errors changed with the wall thickness is ana?lyzed numerically. Analysis results show that the azimuth resolution calculated by L?W formula and A?W formula is increased with the addition of different walls thickness. At the same thickness,the larger refractive index of walls is,the bigger the error of azimuth resolution and relative error become. L?W formula can embody the target recognition ability more precisely than A?W formula when the two formulas are used to calculate azimuth resolution.