Joint Acoustic and Modulation Frequency
نویسندگان
چکیده
منابع مشابه
Joint Acoustic and Modulation Frequency
There is a considerable evidence that our perception of sound uses important features which are related to underlying signal modulations. This topic has been studied extensively via perceptual experiments, yet there are few, if any, well-developed signal processing methods which capitalize on or model these effects. We begin by summarizing evidence of the importance of modulation representation...
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We investigate a novel nondata-aided method for jointly estimating timing and carrier frequency offset in MSKtype modulation. The algorithm has a feedforward structure and lends itself to a simple digital implementation. Its estimation accuracy depends on a design parameter that may be varied to trade performance for computational complexity. Setting the parameter to unity yields a synchronizat...
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Differential Frequency Hopping (DFH) Modulation for Underwater Acoustic Communications and Networking
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Modulation identification is one of the most challenging steps for blind receivers. If frequency offset is present in the system, this process becomes even more difficult. The proposed method is based on the estimation of the modulation types for quadrature amplitude modulation (QAM) even before correcting the frequency offset. The modulation order is estimated using the probability density inf...
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ژورنال
عنوان ژورنال: EURASIP Journal on Advances in Signal Processing
سال: 2003
ISSN: 1687-6180
DOI: 10.1155/s1110865703305013