Browsing by Keywords "Frequency-selective"
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An audio watermarking algorithm via zero assigned filter banks
(IEEE, 2005)In order to identify the owner and distributor of digital data, a watermarking scheme for audio files is proposed in frequency domain. The scheme satisfies the imperceptibility and persistence requirements and is robust ... -
Practical multi-featured perfect absorber utilizing high conductivity silicon
(Institute of Physics Publishing, 2016)We designed all-silicon, multi-featured band-selective perfect absorbing surfaces based on CMOS compatible processes. The center wavelength of the band-selective absorber can be varied between 2 and 22 μm while a bandwidth ...