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In this paper, a novel scheme to extract the watermark data embedded in FRFT domain is presented. The watermark data (FRFT coefficients of the watermark image) is embedded by adding in FRFT coefficients of a host image at pre-determined locations. A non-blind extraction scheme is the main contribution of this paper. To the best of our knowledge, most of the existing work deals with the watermark detection...
A new radio ranging system based on pseudo-random binary-phase code and linear frequency combined modulation is presented. An improved signal processing method of the correlation detection of cyclic autocorrelation function is given and applied to the ranging system. It is proved to be equivalent to the spectral correlation method. The ranging performance and anti-noise ability are simulated and analyzed...
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