Transmission device and quantization method
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United States of America Patent
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Oct 24, 2017
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app pub date -
Jun 26, 2015
filing date -
Mar 9, 2015
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Abstract
Disclosed is a transmission device capable of reducing quantization errors in nonlinear quantization of IQ signals. In the device, a standard deviation measuring unit measures a standard deviation σ of the amplitude distribution of input signals. A kurtosis measuring unit measures the kurtosis of the amplitude distribution of the input signals. A correction coefficient determining unit determines a correction coefficient α corresponding to the kurtosis of the amplitude distribution of the input signals. A quantization unit quantizes the input signals using the correction coefficient α and calculates quantization data. A multiplexing unit multiplexes the quantization data and quantization control information with each other.
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