根据表面反射特性进行目标探测的波段选择

计算和分析了表面反射特性对选择波段进行目标探测的影响.通过引入正交子空间投影方法，将背景信号从接收到的混合光谱中消除，从而达到压缩背景信号的目的.并在此基础上运用匹配跟踪算法自动地进行优化波段的选择,达到选择最佳波段的目的，从而进行目标探测.在大气外实际目标的探测中，得到了进行大气外目标探测的波段选择与目标表面反射特性的关系.

Wavelength Band Selection Method for Target Detection Considering Surface Reflectivity

The influence on target detection of surface reflective character was computed and analyzed in the article. By introducing the orthogonal complement subspace projection method, the background signal was eliminated from the receiving mixture signal. Therefore the aim to compress the background signal was achieved. On the basis of the remaining signal, the matching pursuit algorithm was adopted to select the optimal wavelength bands automatically. Aiming at selecting the optimum wavelength bands was achieved and the target can be detected. The algorithm was applied to target detection out of the atmosphere. At last the relation between the wavelength band selection for target detection out of the atmosphere and the targetrs surface reflective character was obtained.