Abstract
The scaling and rotation sensitivity of a bianary phase-only correlator is studied and compared to that of continuous phase-only correlator, classical correlator, and edge-enhanced classical correlator. Computer simulation of the optical system is used to determine values of the correlation peak intensity versus scale and rotation changes of the input signal for the four filter types. The results show that the binary phase-only filter is slightly less sensitive to such input variations than is the continuous phase-only filter.
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