CHANNEL ESTIMATION APPARATUS OF MINIMUM MEAN SQUARED ERROR INCLUDING INVERSE MATRIX

CHANNEL ESTIMATION APPARATUS OF MINIMUM MEAN SQUARED ERROR INCLUDING INVERSE MATRIX

PURPOSE: A channel estimation device of minimum mean squared error including inverse matrix is provided to control the size of inverse configuration value in MMSE(Minimum Mean Squared Error) channel estimation, thereby preventing degradation of accuracy of inverse matrix operation. CONSTITUTION: A c...

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Hauptverfasser: NOH, SEONG MIN, YOUN, YOUNG HO
Format: Patent
Sprache:eng ; kor
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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YOUN, YOUNG HO
description PURPOSE: A channel estimation device of minimum mean squared error including inverse matrix is provided to control the size of inverse configuration value in MMSE(Minimum Mean Squared Error) channel estimation, thereby preventing degradation of accuracy of inverse matrix operation. CONSTITUTION: A channel correlation matrix calculator(100) configures the correlation matrix. A correlation matrix adjustment unit(200) adjusts values of diagonal of the correlation matrix. An inverse matrix calculator(300) calculates inverse matrix about the correlation matrix. An inverse matrix result analyzer(400) calculates matrix size ratio value. An MMSE(Minimum Mean Square Error) filter coefficient calculator(500) calculates MMSE filter coefficient value. An MMSE filtering unit(600) presumes actual channel by MMSE filter coefficient and LS(least Square) channel characteristic.
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CONSTITUTION: A channel correlation matrix calculator(100) configures the correlation matrix. A correlation matrix adjustment unit(200) adjusts values of diagonal of the correlation matrix. An inverse matrix calculator(300) calculates inverse matrix about the correlation matrix. An inverse matrix result analyzer(400) calculates matrix size ratio value. An MMSE(Minimum Mean Square Error) filter coefficient calculator(500) calculates MMSE filter coefficient value. 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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title CHANNEL ESTIMATION APPARATUS OF MINIMUM MEAN SQUARED ERROR INCLUDING INVERSE MATRIX
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