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- W2065960075 abstract "With recent advances in the state-of-the-art in spatial light modulators, the optical joint transform correlator and binary joint transform correlator are becoming practical signal processing systems. However, the performance of these devices is severely limited because of the dominance of the reference and scene autocorrelation signals in the output plane. Two major problems caused by this are false correlations between multiple targets and low correlation peak amplitudes. Two recently proposed techniques which reduced or eliminate the autocorrelation signals are Fourier plane windowing and time modulation (or frame subtraction). This paper shows how these techniques can be used separately or together to improve binary joint transform correlator performance. In simulation, the two techniques provided peak to noise improvements of 2.5 and 5.5 dB over binarization based on using a uniform threshold. The improvement gained by combining the techniques was 6.6 dB." @default.
- W2065960075 created "2016-06-24" @default.
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- W2065960075 date "1994-09-29" @default.
- W2065960075 modified "2023-09-23" @default.
- W2065960075 title "<title>Fourier plane processing for the joint transform correlator: windows and time modulation</title>" @default.
- W2065960075 doi "https://doi.org/10.1117/12.187284" @default.
- W2065960075 hasPublicationYear "1994" @default.
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