Title :
Reducing harmonic in multiobject joint transform correlation by use of adaptive mean processing
Author_Institution :
Dept. of Electron. Eng., St. John´s & St. Mary´s Inst. of Technol., Taipei, Taiwan
Abstract :
We propose and demonstrate a single spatial light modulator joint transform correlator with adaptive mean processing for reducing harmonic peaks. Compared with the binary joint transform correlator, the proposed scheme provides better correlation performance with insignificant harmonic terms under multiobject and noise background.
Keywords :
Fourier transform optics; adaptive signal processing; object detection; optical correlation; spatial light modulators; Fourier plane; Fourier transform interference intensity; adaptive mean processing; correlation performance; cosine wave information; harmonic peaks reduction; joint power spectrum; multiobject joint transform correlator; multiple targets detection; noise background; nonlinear hard clipping; single spatial light modulator; Background noise; Correlators; Data mining; Discrete Fourier transforms; Discrete transforms; Fourier transforms; Interference; Object detection; Optical modulation; Power harmonic filters;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.971146
