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APPARATUS AND A METHOD FOR RAPIDLY PROCESSING DISCRETE FOURIER TRANSFORMATION, CAPABLE OF DETECTING A PREAMBLE INDEX FROM THE OUTPUTTED SIGNAL OF THE FAST FOURIER TRANSFORMATION
APPARATUS AND A METHOD FOR RAPIDLY PROCESSING DISCRETE FOURIER TRANSFORMATION, CAPABLE OF DETECTING A PREAMBLE INDEX FROM THE OUTPUTTED SIGNAL OF THE FAST FOURIER TRANSFORMATION
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机译：快速处理离散傅里叶变换的装置和方法，能够从快速傅里叶变换的输出信号中检测预示指标
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摘要
PURPOSE: An apparatus and a method for rapidly processing discrete Fourier transformation are provided to reduce a time for detecting random access signal by performing the discrete Fourier transformation using the fast Fourier transformation.;CONSTITUTION: A zero padding unit receives first input signal with a pre-set length and converts the first input signal into second input signal with a length as much as the square of two. The second input signal is outputted. A fast Fourier transformer(22) performs a fast Fourier transformation with respect to the second input signal. A preamble index determining unit(23) detects an preamble index from the outputted signal from the fast Fourier transformer.;COPYRIGHT KIPO 2010
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