Optical EngineeringIterative design of distortion-invariant phase-only filters with high Horner efficiency
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A method is proposed for designing a distortion-invariant correlation phase-only filter by iteratively optimizing the Homer efficiency. Comparisons with conventional filters show some attractive properties of the proposed filters, such as a high correlation peak and good discrimnation ability. An effective improvement for reducing the peak deviation of the phase-only filter is also proposed. The correlation performance of the constructed filters is confirmed by computer simulation.