A channel estimation apparatus includes a pilot symbol extractor, a least square channel estimator, a Kalman filter and a Wiener filter. The pilot symbol extractor extracts a plurality of pilot symbols from symbols of multiple frequency domains. The least square channel estimator compares the extracted multiple pilot symbols with a plurality of reference pilot symbols and generates a plurality of least square channel frequency responses. The Kalman filter performs Kalman filtering on the least square channel frequency responses. The Wiener filter performs the Wiener filtering on the Kalman filtered least square channel frequency responses. [Reference numerals] (120) Receiving unit;(140) CP removing unit;(180) Channel estimating unit;(190) Channel compensating unit;(195) Digital demodulating unit;(AA) Data symbol
申请公布号
KR20130128743(A)
申请公布日期
2013.11.27
申请号
KR20120052715
申请日期
2012.05.17
申请人
LG INNOTEK CO., LTD.;INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
发明人
AN, JEONG WOOK;HWANG, IN TAE;SARANSH MALIK;MOON, SANG MI;KIM, BO RA