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The paper investigates the detection and time of arrival estimation problem for a pulse embedded in noise under low sampling rates with variation in energy-to-noise ratio (ENR). It remains a classical problem in the detection of signals in radar applications and not much literature is available on it. The paper aims at investigating this issue subject to(More)
Digital watermarking is a fast growing research area nowadays. An invisible signal called watermark is added into the cover data. Using this watermark, many security services can be provided to host data e.g. illegal copying of data can be avoided, any tempering with the data can be stopped and unauthorized users misusing the data can be caught along with(More)
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