【摘要】 提出一种使用振幅调制和功率谱相减的联合变换相关器（ＪＴＣ）作多目标检测。这一方法对联合功率谱作了修正，先将联合功率谱减去纯输入景物的功率谱和参考图象的功率谱，再将所得修正的联合功率谱（ＪＩＳ）乘以振幅调制滤波（ＡＭＦ）函数。分析和量化了输入景物噪声对联合变换相关器性能的影响。这种方法比条纹调节的联合变换相关器和修正的条纹调节的联合变换相关器能产生更好的相关输出和适应输入景物噪声的能力。更多还原

【Abstract】 Multiple target detection using an amplitude modulated and power spectrum subtracted joint transform correlator is proposed. In this technique, the joint power spectrum is firstly modified by the subtraction of the power spectra of the input scene only and of the reference image from it, the resultant modified joint power spectrum is next multiplied by the amplitude modulated filter function. The effect of noise in the input scene on the performance of the joint transform correlator is analyzed and quantified. The technique is found to deliver a better correlation output and the capacity to accommodate noise in the input scene than both the fringe adjusted filter and the modified fringe adjusted filter based joint transform correlators.更多还原