Based on the chirp-encoding and high Pass filtering, the multitarget detectionusing a chirp-encoded joint transform correlator with high pass filtering is proposed. Thistechnique focuses the desired cross correlation terms between the reference image and thetarget images and the undesired terms, including D. C. term, self- correlation termsbetween the target images and various higher-order correlation terms, onto separated outputplanes. Thus it has higher accuracy of detection. Computer simulation results for the input gray-scale multitarget scenes are given.