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Synchronous reference frame phase-locked loop (SRF PLL) is extensively employed for grid converter synchronization applications. When the input contains the fundamental positive sequence (FPS) component alone, it performs exceedingly well. However, with harmonic contamination and unbalance in the input, its performance degrades. For this purpose, many structural modifications are proposed. In this...
Print-scan resilient data hiding finds important applications in document security and image copyright protection. This paper proposes methods to hide information into images that achieve robustness against printing and scanning with blind decoding. The selective embedding in low frequencies scheme hides information in the magnitude of selected low-frequency discrete Fourier transform coefficients...
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