1″级四面体组合合作目标激光雷达散射截面实验与理论研究

Cr:LiSAF是一种高效率、宽发射光谱及寿命时间长的激光晶体。Cr:LiSAF激光器发展极快,现已提供从可见到近红外区域全固体化宽带可调谐激光及超短脉冲激光。

Experimental and theoretic study on laser radar cross section of the cooperative targets with 1″order corner reflectors

Under the radiation of 1.06μm laser beam,the Laser Radar Cross Sec-tion(LRCS)of 1″order corner reflectors have been investigated between-50°～50°azimuth angle when elevation angle is 0°,and the LRCS of the ladder-shaped coopera-tive targets combined with corner reflectors have been measured from-64°～64°azimuth angle as elevation angle range varing from 0°～24°by using LRCS measuring system.The angular resolution is 1°.The measured data are reported.The experimen-tal results are in agreement with the theoretical estimate.It indicates that increasing signal intensity and expanding angle of aspect can be controlled by selecting proper com-bined form and ensuring accurary of process.So laser radar tracking is realized in long distance,wide aspect angle under the bad environment. Some influences on the mea-surement are also discussed.