采用一种优化编码方法的光学相关器在目标识别中的应用

The Application of Match Filter Made by Computer in Vander Lugt Correlator

Vander Lugt 相关器在纪录目标图形的傅里叶变换复振幅谱时,通常需要引入一个离轴的参考光波来纪录复振幅信息。本文利用计算机制匹配滤波器,对四级迂回相位编码方法进行了优化,事先生成不同目标的匹配滤波器进行目标识别,从而大大简化了实验方案,保证了 Vander Lugt 相关器工作的实时性。实验结果显示了该方法的可行性。

It is often use reference light of off-axis to recode the phase information when recode the complex amplitude of target images Fourier-transform in Vander Lugt correlator. The paper provided a way to make the optimization match filter by computer could simplify the experiment scheme and meet the need of real-time recognition. The result of experiment showed the feasibility of the method.